diff --git a/.github/workflows/vendor-fixtures.yml b/.github/workflows/vendor-fixtures.yml
index b3b2ff10..f8cabcbc 100644
--- a/.github/workflows/vendor-fixtures.yml
+++ b/.github/workflows/vendor-fixtures.yml
@@ -38,6 +38,8 @@ jobs:
           sh -n application/qmodem/tests/test_core_cmds.sh
           bash -n application/qmodem/tests/test_collect_encryption.sh
           bash -n application/qmodem/tests/test_fixture_profiles.sh
+          bash -n application/qmodem/tests/test_fixture_response_queue.sh
+          bash -n application/qmodem/tests/test_import_testcases.sh
           sh -n application/qmodem/tests/test_vendor_cmds_boundary.sh
           bash -n application/qmodem/tests/test_fixture_collection_bytes.sh
           bash -n application/qmodem/tests/test_recognition_collection.sh
@@ -51,6 +53,8 @@ jobs:
           application/qmodem/tests/test_recognition_collection.sh
           application/qmodem/tests/test_recognition_fixtures.sh
           application/qmodem/tests/test_fixture_profiles.sh
+          application/qmodem/tests/test_fixture_response_queue.sh
+          application/qmodem/tests/test_import_testcases.sh
           QMODEM_TEST_SEAL_BIN=/tmp/qmodem-seal \
             application/qmodem/tests/test_collect_encryption.sh
       - name: Replay vendor fixtures
diff --git a/application/qmodem/files/etc/config/qmodem b/application/qmodem/files/etc/config/qmodem
index 8053603a..947c5de1 100644
--- a/application/qmodem/files/etc/config/qmodem
+++ b/application/qmodem/files/etc/config/qmodem
@@ -16,3 +16,4 @@ config main 'main'
 	option usage_stats_nvram_interval '300'
 	#collect AT command fixtures to /tmp/qmodem/testcases for qmodem_collect pack
 	option testcase_collect '0'
+	option testcase_scenario 'default'
diff --git a/application/qmodem/files/usr/sbin/qmodem_collect b/application/qmodem/files/usr/sbin/qmodem_collect
index 9dc7d9a8..c7caa948 100755
--- a/application/qmodem/files/usr/sbin/qmodem_collect
+++ b/application/qmodem/files/usr/sbin/qmodem_collect
@@ -88,12 +88,14 @@ resolve_recognition_fixture()
 
 cmd_status()
 {
-    local seal_bin recipient_id
+    local seal_bin recipient_id scenario
     if collect_enabled; then
         echo "testcase_collect: on"
     else
         echo "testcase_collect: off (enable: uci set qmodem.main.testcase_collect=1 && uci commit qmodem)"
     fi
+    scenario=$(uci -q get qmodem.main.testcase_scenario 2>/dev/null)
+    echo "testcase_scenario: ${scenario:-default}"
     if [ -d "$COLLECT_DIR" ]; then
         echo "collect dir: $COLLECT_DIR ($(find "$COLLECT_DIR" -name '*.json' 2>/dev/null | wc -l) fixture files)"
     else
@@ -135,7 +137,7 @@ cmd_pack()
     }
     local work out_file file count timestamp inner_file seal_work seal_bin
     local rel resolved target_rel expected_vendor expected_platform expected_model prepared
-    local recipient recipient_id seal_output review_key wrapped_key_hex
+    local recipient recipient_id seal_output review_key wrapped_key_hex response_count response_index update_file
     work=$(mktemp -d) || exit 1
     PACK_WORK="$work"
     count=0
@@ -148,10 +150,20 @@ cmd_pack()
         expected_platform=$(printf '%s' "$resolved" | cut -f3)
         expected_model=$(printf '%s' "$resolved" | cut -f4)
         prepared="$file"
-        if [ -n "$expected_vendor" ]; then
+        if [ "${target_rel#*/expected/}" = "$target_rel" ]; then
             prepared="$work/.fixture.$count.json"
-            jq --arg vendor "$expected_vendor" --arg platform "$expected_platform" --arg model "$expected_model" \
-                '.expected_identity={vendor:$vendor, platform:$platform, model:$model}' "$file" > "$prepared" || exit 1
+            jq --arg vendor "$expected_vendor" --arg platform "$expected_platform" --arg model "$expected_model" '
+                if has("responses") then .
+                else .responses=[{response_hex:(.response_hex // ""), response:.response,
+                                  rc:(.rc // 0), timestamp:(.timestamp // "")}]
+                  | del(.response_hex, .response, .rc, .timestamp)
+                end
+                | .responses |= map(if .response == null then del(.response) else . end)
+                | .responses |= to_entries | .responses |= map(
+                    .value + {scenario:(.value.scenario // "default"), sequence:(.value.sequence // .key),
+                              capture_sequence:(.value.capture_sequence // .value.sequence // .key)})
+                | if $vendor != "" then .expected_identity={vendor:$vendor, platform:$platform, model:$model}
+                  else . end' "$file" > "$prepared" || exit 1
         fi
         mkdir -p "$work/$(dirname "$target_rel")"
         if [ "$raw" = "1" ]; then
@@ -168,28 +180,33 @@ cmd_pack()
             cmd_masked=$(jq -r '.command // ""' "$prepared" | mask_digits)
             raw_response="$work/.response.raw"
             sanitized_response="$work/.response.sanitized"
-            resp_hex=$(jq -r '.response_hex // empty' "$prepared")
-            if [ -n "$resp_hex" ]; then
-                printf '%s' "$resp_hex" | xxd -r -p > "$raw_response" || {
+            jq --arg c "$cmd_masked" '.command=$c | .sanitized=true' "$prepared" > "$work/$target_rel" || exit 1
+            response_count=$(jq '.responses | length' "$prepared")
+            response_index=0
+            while [ "$response_index" -lt "$response_count" ]; do
+                resp_hex=$(jq -r --argjson i "$response_index" '.responses[$i].response_hex // empty' "$prepared")
+                if [ -n "$resp_hex" ]; then
+                    printf '%s' "$resp_hex" | xxd -r -p > "$raw_response" || {
+                        rm -rf "$work"
+                        echo "invalid response_hex in fixture: $file response[$response_index]" >&2
+                        exit 1
+                    }
+                else
+                    jq -j --argjson i "$response_index" '.responses[$i].response // ""' "$prepared" > "$raw_response"
+                fi
+                mask_digits < "$raw_response" > "$sanitized_response"
+                resp_hex=$(xxd -p "$sanitized_response" | tr -d '\n') || {
                     rm -rf "$work"
-                    echo "invalid response_hex in fixture: $file" >&2
+                    echo "failed to encode fixture response: $file response[$response_index]" >&2
                     exit 1
                 }
-            else
-                jq -j '.response // ""' "$prepared" > "$raw_response"
-            fi
-            mask_digits < "$raw_response" > "$sanitized_response"
-            resp_hex=$(xxd -p "$sanitized_response" | tr -d '\n') || {
-                rm -rf "$work"
-                echo "failed to encode fixture response: $file" >&2
-                exit 1
-            }
-            jq --arg c "$cmd_masked" --arg h "$resp_hex" \
-                '.command=$c | .response_hex=$h | del(.response) | .sanitized=true' "$prepared" > "$work/$target_rel" || {
-                rm -rf "$work"
-                echo "failed to sanitize fixture: $file" >&2
-                exit 1
-            }
+                update_file="$work/.sanitized.$count.json"
+                jq --argjson i "$response_index" --arg h "$resp_hex" \
+                    '.responses[$i].response_hex=$h | del(.responses[$i].response)' \
+                    "$work/$target_rel" > "$update_file" || exit 1
+                mv "$update_file" "$work/$target_rel"
+                response_index=$((response_index + 1))
+            done
             rm -f "$raw_response" "$sanitized_response"
         fi
         [ "$prepared" = "$file" ] || rm -f "$prepared"
diff --git a/application/qmodem/files/usr/share/qmodem/modem_ctrl.sh b/application/qmodem/files/usr/share/qmodem/modem_ctrl.sh
index 543e95ea..d7bc8280 100755
--- a/application/qmodem/files/usr/share/qmodem/modem_ctrl.sh
+++ b/application/qmodem/files/usr/share/qmodem/modem_ctrl.sh
@@ -332,7 +332,7 @@ case $method in
 esac
 #optionally keep a golden snapshot of the final JSON for fixture tests
 if qmodem_testcase_collect_enabled; then
-    expected_dir="$(qmodem_testcase_profile_dir)/expected"
+    expected_dir="$(qmodem_testcase_profile_dir)/expected/$(qmodem_testcase_scenario)"
     mkdir -p "$expected_dir" 2>/dev/null
     json_dump | tee "$expected_dir/$method.json"
 else
diff --git a/application/qmodem/files/usr/share/qmodem/modem_util.sh b/application/qmodem/files/usr/share/qmodem/modem_util.sh
index e0396017..b8c08092 100755
--- a/application/qmodem/files/usr/share/qmodem/modem_util.sh
+++ b/application/qmodem/files/usr/share/qmodem/modem_util.sh
@@ -31,6 +31,13 @@ qmodem_testcase_path_segment()
   printf '%s' "$slug"
 }
 
+qmodem_testcase_scenario()
+{
+  local scenario="${QMODEM_TESTCASE_SCENARIO:-}"
+  [ -n "$scenario" ] || scenario=$(uci -q get qmodem.main.testcase_scenario 2>/dev/null)
+  qmodem_testcase_path_segment "${scenario:-default}" default
+}
+
 qmodem_testcase_profile_dir()
 {
   local collect_dir="${QMODEM_COLLECT_DIR:-/tmp/qmodem/testcases}"
@@ -61,7 +68,7 @@ qmodem_record_testcase_file()
   local vendor_name="${vendor:-${manufacturer:-core}}"
   local platform_name="${platform:-unknown}"
   local model_name="${QMODEM_TESTCASE_MODEL:-}" dir phase=vendor
-  local slug hash file
+  local slug hash file update_file timestamp scenario lock_dir attempts
   [ -n "$model_name" ] || model_name=$(uci -q get "qmodem.${config_section:-}.name" 2>/dev/null)
   [ -n "$model_name" ] || model_name="unknown"
   if [ "$vendor_name" = "core" ] || [ "$vendor_name" = "unknown" ] || [ "$model_name" = "unknown" ]; then
@@ -73,6 +80,43 @@ qmodem_record_testcase_file()
   hash=$(printf '%s' "$atcmd" | md5sum | cut -c1-8)
   file="${dir}/${slug}-${hash}.json"
   response_hex=$(xxd -p "$response_file" | tr -d '\n') || return 0
+  timestamp=$(date -u +%Y-%m-%dT%H:%M:%SZ)
+  scenario=$(qmodem_testcase_scenario)
+  lock_dir="${file}.lock"
+  attempts=0
+  while ! mkdir "$lock_dir" 2>/dev/null; do
+    attempts=$((attempts + 1))
+    [ "$attempts" -lt 100 ] || return 0
+    sleep 0.05
+  done
+  update_file=$(mktemp "${dir}/.fixture.XXXXXX") || {
+    rmdir "$lock_dir" 2>/dev/null
+    return 0
+  }
+  if [ -f "$file" ]; then
+    jq --arg response_hex "$response_hex" --argjson rc "$rc" --arg timestamp "$timestamp" \
+      --arg scenario "$scenario" '
+      if has("responses") then .
+      else .responses=[{response_hex:(.response_hex // ""), rc:(.rc // 0),
+                        timestamp:(.timestamp // ""), scenario:"default", sequence:0}]
+        | del(.response_hex, .response, .rc, .timestamp)
+      end
+      | .responses |= map(if .response == null then del(.response) else . end)
+      | .responses |= to_entries | .responses |= map(
+          .value + {scenario:(.value.scenario // "default"), sequence:(.value.sequence // .key),
+                    capture_sequence:(.value.capture_sequence // .value.sequence // .key)})
+      | .responses |= map(.value // .)
+      | ([.responses[] | select(.scenario == $scenario) | .sequence] | max // -1) as $last
+      | .responses += [{response_hex:$response_hex, rc:$rc, timestamp:$timestamp,
+                        scenario:$scenario, sequence:($last + 1), capture_sequence:($last + 1)}]' "$file" > "$update_file" 2>/dev/null || {
+          rm -f "$update_file"
+          rmdir "$lock_dir" 2>/dev/null
+          return 0
+        }
+    mv "$update_file" "$file" 2>/dev/null || rm -f "$update_file"
+    rmdir "$lock_dir" 2>/dev/null
+    return 0
+  fi
   jq -n \
     --arg vendor "$vendor_name" \
     --arg platform "$platform_name" \
@@ -81,13 +125,16 @@ qmodem_record_testcase_file()
     --arg response_hex "$response_hex" \
     --arg tool "$tool" \
     --arg phase "$phase" \
+    --arg scenario "$scenario" \
     --arg config_section "${config_section:-unknown}" \
     --argjson rc "$rc" \
-    --arg timestamp "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+    --arg timestamp "$timestamp" \
     '{vendor:$vendor, platform:$platform, model:$model, phase:$phase,
-      config_section:$config_section, command:$command,
-      response_hex:$response_hex, tool:$tool, rc:$rc, timestamp:$timestamp}' \
-    > "$file" 2>/dev/null || rm -f "$file"
+      config_section:$config_section, command:$command, tool:$tool,
+      responses:[{response_hex:$response_hex, rc:$rc, timestamp:$timestamp,
+                  scenario:$scenario, sequence:0, capture_sequence:0}]}' \
+    > "$update_file" 2>/dev/null && mv "$update_file" "$file" 2>/dev/null || rm -f "$update_file"
+  rmdir "$lock_dir" 2>/dev/null
 }
 
 at()
diff --git a/application/qmodem/tests/lib/at_fixture.sh b/application/qmodem/tests/lib/at_fixture.sh
index cd45e424..21c6bb20 100644
--- a/application/qmodem/tests/lib/at_fixture.sh
+++ b/application/qmodem/tests/lib/at_fixture.sh
@@ -1,5 +1,5 @@
 # Replay recorded fixtures instead of touching hardware.
-# Requires FIXTURE_LOOKUP: a dir with <md5(command)>.response / .rc files.
+# Requires FIXTURE_LOOKUP: ordered responses grouped by command hash and scenario.
 
 at() { _fixture_send at "$@"; }
 fastat() { _fixture_send fastat "$@"; }
@@ -8,12 +8,19 @@ _fixture_send()
 {
     _fs_cmd=$3
     _fs_h=$(printf '%s' "$_fs_cmd" | md5sum | cut -c1-8)
-    if [ -f "$FIXTURE_LOOKUP/$_fs_h.response" ]; then
-        cat "$FIXTURE_LOOKUP/$_fs_h.response"
+    _fs_cursor="$FIXTURE_LOOKUP/cursors/$_fs_h"
+    _fs_index=0
+    [ ! -f "$_fs_cursor" ] || _fs_index=$(cat "$_fs_cursor")
+    _fs_variant="$FIXTURE_LOOKUP/$_fs_h.responses/${FIXTURE_SCENARIO:-default}/$_fs_index"
+    if [ -f "$_fs_variant.response" ]; then
+        printf '%s\n' "$_fs_h" >> "$FIXTURE_LOOKUP/hits.log"
+        printf '%s\n' "$((_fs_index + 1))" > "$_fs_cursor"
+        cat "$_fs_variant.response"
         _fs_rc=0
-        [ -f "$FIXTURE_LOOKUP/$_fs_h.rc" ] && _fs_rc=$(cat "$FIXTURE_LOOKUP/$_fs_h.rc")
+        [ -f "$_fs_variant.rc" ] && _fs_rc=$(cat "$_fs_variant.rc")
         return "$_fs_rc"
     fi
-    echo "$_fs_cmd" >> "$FIXTURE_LOOKUP/misses.log"
-    return 0
+    printf '%s\t%s\t%s\n' "${FIXTURE_SCENARIO:-default}" "$_fs_index" "$_fs_cmd" \
+        >> "$FIXTURE_LOOKUP/misses.log"
+    return 127
 }
diff --git a/application/qmodem/tests/test_collect_encryption.sh b/application/qmodem/tests/test_collect_encryption.sh
index dad90793..7fb77b2e 100755
--- a/application/qmodem/tests/test_collect_encryption.sh
+++ b/application/qmodem/tests/test_collect_encryption.sh
@@ -20,9 +20,11 @@ trap cleanup EXIT
 profile=quectel/qualcomm/rm500q-ae-9f94df3c
 mkdir -p "$test_dir/fixtures/$profile"
 response_hex=$(printf 'AT+CGSN\r\n861234567890123\r\nOK\r\n\r\n' | xxd -p | tr -d '\n')
-jq -n --arg h "$response_hex" \
+response_hex_2=$(printf 'AT+CGSN\r\n869876543210987\r\nOK\r\n\r\n' | xxd -p | tr -d '\n')
+jq -n --arg h "$response_hex" --arg h2 "$response_hex_2" \
     '{vendor:"quectel",platform:"qualcomm",model:"RM500Q-AE",
-      command:"AT+CGSN",response_hex:$h,tool:"at",rc:0}' \
+      command:"AT+CGSN",tool:"at",
+      responses:[{response_hex:$h,rc:0},{response_hex:$h2,rc:0}]}' \
     > "$test_dir/fixtures/$profile/cgsn.json"
 
 plain_output=$(QMODEM_COLLECT_DIR="$test_dir/fixtures" \
@@ -66,8 +68,11 @@ owner_review=$(printf '%s\n' "$token" | "$seal_bin" review-key --token-stdin \
 printf '%s\n' "$review_key" | "$seal_bin" decrypt --review-key --token-stdin \
     --input "$encrypted_file" --output "$test_dir/review.tar.gz"
 tar -xOzf "$test_dir/review.tar.gz" "./$profile/cgsn.json" \
-    | jq -r '.response_hex' | xxd -r -p \
+    | jq -r '.responses[0].response_hex' | xxd -r -p \
     | cmp - <(printf 'AT+CGSN\r\n860000000000023\r\nOK\r\n\r\n')
+tar -xOzf "$test_dir/review.tar.gz" "./$profile/cgsn.json" \
+    | jq -r '.responses[1].response_hex' | xxd -r -p \
+    | cmp - <(printf 'AT+CGSN\r\n860000000000087\r\nOK\r\n\r\n')
 
 forced_output=$(QMODEM_COLLECT_DIR="$test_dir/fixtures" QMODEM_SEAL_BIN="$seal_bin" \
     "$collect_bin" pack --unencrypted 2>&1)
diff --git a/application/qmodem/tests/test_fixture_collection_bytes.sh b/application/qmodem/tests/test_fixture_collection_bytes.sh
index e38dfc6e..3b6e1c85 100755
--- a/application/qmodem/tests/test_fixture_collection_bytes.sh
+++ b/application/qmodem/tests/test_fixture_collection_bytes.sh
@@ -40,9 +40,9 @@ rc=$?
 [ "$rc" -eq 7 ]
 cmp "$expected" "$actual"
 fixture=$(find "$QMODEM_COLLECT_DIR/quectel" -name '*BYTECHECK*.json')
-fixture_hex_decode "$(jq -r '.response_hex' "$fixture")" > "$recorded"
+fixture_hex_decode "$(jq -r '.responses[0].response_hex' "$fixture")" > "$recorded"
 cmp "$expected" "$recorded"
-[ "$(jq -r '.rc' "$fixture")" -eq 7 ]
+[ "$(jq -r '.responses[0].rc' "$fixture")" -eq 7 ]
 [ "$(jq -r '.platform' "$fixture")" = qualcomm ]
 [ "$(jq -r '.model' "$fixture")" = RM500Q-AE ]
 case "$fixture" in */quectel/qualcomm/rm500q-ae-9f94df3c/*) ;; *) exit 1 ;; esac
@@ -53,8 +53,41 @@ rc=$?
 [ "$rc" -eq 9 ]
 cmp "$expected" "$actual"
 fixture=$(find "$QMODEM_COLLECT_DIR/quectel" -name '*FASTBYTECHECK*.json')
-fixture_hex_decode "$(jq -r '.response_hex' "$fixture")" > "$recorded"
+fixture_hex_decode "$(jq -r '.responses[0].response_hex' "$fixture")" > "$recorded"
 cmp "$expected" "$recorded"
-[ "$(jq -r '.rc' "$fixture")" -eq 9 ]
+[ "$(jq -r '.responses[0].rc' "$fixture")" -eq 9 ]
+[ "$(jq -r '.responses[0].scenario' "$fixture")" = default ]
+[ "$(jq -r '.responses[0].sequence' "$fixture")" -eq 0 ]
+[ "$(jq -r '.responses[0].capture_sequence' "$fixture")" -eq 0 ]
+
+variant=ONE
+tom_modem()
+{
+    printf '%s\r\nOK\r\n' "$variant"
+}
+at /dev/ttyUSB2 'AT+VARIANT' >/dev/null
+variant=TWO
+at /dev/ttyUSB2 'AT+VARIANT' >/dev/null
+at /dev/ttyUSB2 'AT+VARIANT' >/dev/null
+QMODEM_TESTCASE_SCENARIO=sim-absent
+export QMODEM_TESTCASE_SCENARIO
+at /dev/ttyUSB2 'AT+VARIANT' >/dev/null
+fixture=$(find "$QMODEM_COLLECT_DIR/quectel" -name '*VARIANT*.json')
+[ "$(jq '.responses | length' "$fixture")" -eq 4 ]
+[ "$(jq -r '.responses[0].response_hex' "$fixture")" != "$(jq -r '.responses[1].response_hex' "$fixture")" ]
+[ "$(jq -r '[.responses[] | select(.scenario == "default") | .sequence] | join(" ")' "$fixture")" = '0 1 2' ]
+[ "$(jq -r '[.responses[] | select(.scenario == "sim-absent") | .sequence] | join(" ")' "$fixture")" = '0' ]
+
+QMODEM_TESTCASE_SCENARIO=parallel
+export QMODEM_TESTCASE_SCENARIO
+for n in 0 1 2 3 4 5 6 7; do
+    response_file="$QMODEM_COLLECT_DIR/parallel-$n.response"
+    printf 'RESPONSE-%s\r\n' "$n" > "$response_file"
+    (qmodem_record_testcase_file at 'AT+PARALLEL' "$response_file" 0) &
+done
+wait
+fixture=$(find "$QMODEM_COLLECT_DIR/quectel" -name '*PARALLEL*.json')
+[ "$(jq '.responses | length' "$fixture")" -eq 8 ]
+[ "$(jq -r '[.responses[].sequence] | sort | join(" ")' "$fixture")" = '0 1 2 3 4 5 6 7' ]
 
 echo 'fixture collection byte tests passed'
diff --git a/application/qmodem/tests/test_fixture_profiles.sh b/application/qmodem/tests/test_fixture_profiles.sh
index f39665b1..3b3a2106 100755
--- a/application/qmodem/tests/test_fixture_profiles.sh
+++ b/application/qmodem/tests/test_fixture_profiles.sh
@@ -8,20 +8,33 @@ trap 'rm -rf "$test_root"' EXIT
 
 write_fixture()
 {
-    local platform=$1 model=$2 model_dir=$3 response=$4 dir hex
+    local platform=$1 model=$2 model_dir=$3 response=$4 response2=${5:-} dir hex hex2
     dir="$test_root/testcases/quectel/$platform/$model_dir"
     mkdir -p "$dir"
     hex=$(printf '%s' "$response" | xxd -p | tr -d '\n')
-    jq -n --arg platform "$platform" --arg model "$model" --arg hex "$hex" \
-        '{vendor:"quectel",platform:$platform,model:$model,command:"AT+CGSN",
-          response_hex:$hex,tool:"at",rc:0}' > "$dir/AT_CGSN.json"
+    hex2=$(printf '%s' "$response2" | xxd -p | tr -d '\n')
+    jq -n --arg platform "$platform" --arg model "$model" --arg hex "$hex" --arg hex2 "$hex2" \
+        '{vendor:"quectel",platform:$platform,model:$model,command:"AT+CGSN",tool:"at",
+          responses:([{response_hex:$hex,rc:0,timestamp:"test",scenario:"default",sequence:0,capture_sequence:0}] +
+                     (if $hex2 == "" then [] else [{response_hex:$hex2,rc:0,timestamp:"test",scenario:"roaming",sequence:0,capture_sequence:0}] end))}' \
+        > "$dir/AT_CGSN.json"
 }
 
-write_fixture qualcomm RM500Q-AE rm500q-ae-9f94df3c $'QUALCOMM\r\nOK\r\n'
+write_fixture qualcomm RM500Q-AE rm500q-ae-9f94df3c \
+    $'AT+CGSN\r\r\n860000000000012\r\n\r\nOK\r\n' \
+    $'AT+CGSN\r\r\n860000000000013\r\n\r\nOK\r\n'
 write_fixture unisoc UDX710 udx710-861f4136 $'UNISOC\r\nOK\r\n'
+mkdir -p "$test_root/testcases/quectel/qualcomm/rm500q-ae-9f94df3c/expected/default"
+mkdir -p "$test_root/testcases/quectel/qualcomm/rm500q-ae-9f94df3c/expected/roaming"
+jq -n '{result:{},imei:"860000000000012"}' \
+    > "$test_root/testcases/quectel/qualcomm/rm500q-ae-9f94df3c/expected/default/get_imei.json"
+jq -n '{result:{},imei:"860000000000013"}' \
+    > "$test_root/testcases/quectel/qualcomm/rm500q-ae-9f94df3c/expected/roaming/get_imei.json"
 
 output=$(QMODEM_TEST_REPO_ROOT="$test_root" "$PACKAGE_DIR/tests/test_vendor_fixtures.sh")
-printf '%s\n' "$output" | grep -q 'quectel/qualcomm/rm500q-ae-9f94df3c: replay passed'
-printf '%s\n' "$output" | grep -q 'quectel/unisoc/udx710-861f4136: replay passed'
+printf '%s\n' "$output" | grep -q 'quectel/qualcomm/rm500q-ae-9f94df3c/default: replay passed'
+printf '%s\n' "$output" | grep -q 'qualcomm/rm500q-ae-9f94df3c/default: get_imei matches golden snapshot'
+printf '%s\n' "$output" | grep -q 'qualcomm/rm500q-ae-9f94df3c/roaming: get_imei matches golden snapshot'
+printf '%s\n' "$output" | grep -q 'quectel/unisoc/udx710-861f4136/default: replay passed'
 
 echo 'fixture profile isolation tests passed'
diff --git a/application/qmodem/tests/test_fixture_response_queue.sh b/application/qmodem/tests/test_fixture_response_queue.sh
new file mode 100755
index 00000000..1c2d75dc
--- /dev/null
+++ b/application/qmodem/tests/test_fixture_response_queue.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# A command consumes ordered responses within one scenario without leaking state.
+set -u
+
+TESTS_DIR=$(CDPATH= cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+FIXTURE_LOOKUP=$(mktemp -d)
+trap 'rm -rf "$FIXTURE_LOOKUP"' EXIT
+
+command='AT+STATE?'
+hash=$(printf '%s' "$command" | md5sum | cut -c1-8)
+mkdir -p "$FIXTURE_LOOKUP/$hash.responses/registered" \
+    "$FIXTURE_LOOKUP/$hash.responses/sim-absent" "$FIXTURE_LOOKUP/cursors"
+printf 'REGISTERING\r\n' > "$FIXTURE_LOOKUP/$hash.responses/registered/0.response"
+printf 'REGISTERED\r\n' > "$FIXTURE_LOOKUP/$hash.responses/registered/1.response"
+printf 'NO SIM\r\n' > "$FIXTURE_LOOKUP/$hash.responses/sim-absent/0.response"
+printf '0\n' > "$FIXTURE_LOOKUP/$hash.responses/registered/0.rc"
+printf '0\n' > "$FIXTURE_LOOKUP/$hash.responses/registered/1.rc"
+printf '3\n' > "$FIXTURE_LOOKUP/$hash.responses/sim-absent/0.rc"
+
+export FIXTURE_LOOKUP
+. "$TESTS_DIR/lib/at_fixture.sh"
+
+FIXTURE_SCENARIO=registered
+export FIXTURE_SCENARIO
+[ "$(at /dev/null "$command")" = $'REGISTERING\r' ]
+[ "$(at /dev/null "$command")" = $'REGISTERED\r' ]
+at /dev/null "$command" >/dev/null 2>&1
+[ "$?" -eq 127 ]
+
+rm -f "$FIXTURE_LOOKUP/cursors/$hash"
+FIXTURE_SCENARIO=sim-absent
+export FIXTURE_SCENARIO
+output=$(at /dev/null "$command")
+rc=$?
+[ "$output" = $'NO SIM\r' ]
+[ "$rc" -eq 3 ]
+
+echo 'fixture response queue tests passed'
diff --git a/application/qmodem/tests/test_import_testcases.sh b/application/qmodem/tests/test_import_testcases.sh
new file mode 100755
index 00000000..274f669c
--- /dev/null
+++ b/application/qmodem/tests/test_import_testcases.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# Legacy single-response feedback is normalized to responses[] during import.
+set -euo pipefail
+
+TESTS_DIR=$(CDPATH= cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+REPO_ROOT=$(CDPATH= cd "$TESTS_DIR/../../.." && pwd)
+test_root=$(mktemp -d)
+archive=$(mktemp --suffix=.tar.gz)
+source_dir="$test_root/source/quectel/qualcomm/example-1a79a4d6"
+cleanup() { rm -rf "$test_root" "$archive"; }
+trap cleanup EXIT
+
+mkdir -p "$source_dir"
+jq -n '{vendor:"quectel",platform:"qualcomm",model:"example",command:"AT+CGSN",
+        tool:"at",response_hex:"4f4b0d0a",rc:0,timestamp:"legacy"}' \
+    > "$source_dir/AT_CGSN.json"
+mkdir -p "$source_dir/expected"
+jq -n '{result:{},imei:"legacy"}' > "$source_dir/expected/get_imei.json"
+tar -czf "$archive" -C "$test_root/source" .
+
+QMODEM_TEST_REPO_ROOT="$test_root/import" "$REPO_ROOT/scripts/import_testcases.sh" "$archive" >/dev/null
+fixture="$test_root/import/testcases/quectel/qualcomm/example-1a79a4d6/AT_CGSN.json"
+jq -e '
+    (.responses | length) == 1 and
+    .responses[0] == {response_hex:"4f4b0d0a",rc:0,timestamp:"legacy",scenario:"default",sequence:0,capture_sequence:0} and
+    (has("response_hex") | not) and (has("rc") | not)' "$fixture" >/dev/null
+[ -f "$test_root/import/testcases/quectel/qualcomm/example-1a79a4d6/expected/default/get_imei.json" ]
+
+# Importing another capture merges stateful responses and remains idempotent.
+jq -n '{vendor:"quectel",platform:"qualcomm",model:"example",command:"AT+CGSN",tool:"at",
+        responses:[
+          {response_hex:"4552524f520d0a",rc:1,timestamp:"second",scenario:"default",sequence:0},
+          {response_hex:"524f414d494e470d0a",rc:0,timestamp:"second",scenario:"roaming",sequence:0}
+        ]}' > "$source_dir/AT_CGSN.json"
+tar -czf "$archive" -C "$test_root/source" .
+QMODEM_TEST_REPO_ROOT="$test_root/import" "$REPO_ROOT/scripts/import_testcases.sh" "$archive" >/dev/null
+QMODEM_TEST_REPO_ROOT="$test_root/import" "$REPO_ROOT/scripts/import_testcases.sh" "$archive" >/dev/null
+jq -e '
+  (.responses | length) == 3 and
+  ([.responses[] | select(.scenario == "default") | .sequence] == [0,1]) and
+  ([.responses[] | select(.scenario == "roaming") | .sequence] == [0])
+' "$fixture" >/dev/null
+
+echo 'testcase import compatibility tests passed'
diff --git a/application/qmodem/tests/test_recognition_fixtures.sh b/application/qmodem/tests/test_recognition_fixtures.sh
index 8616c066..bf188514 100755
--- a/application/qmodem/tests/test_recognition_fixtures.sh
+++ b/application/qmodem/tests/test_recognition_fixtures.sh
@@ -54,9 +54,16 @@ for fixture in "${fixture_files[@]}"; do
     fi
 
     command=$(jq -r '.command // empty' "$fixture")
-    response_hex=$(jq -r '.response_hex // empty' "$fixture")
-    if [ -z "$command" ] || ! printf '%s' "$response_hex" | grep -Eq '^([0-9a-fA-F]{2})*$'; then
-        echo "FAIL: $label: invalid command or response_hex"
+    if [ -z "$command" ] || ! jq -e '
+        (.responses | type) == "array" and (.responses | length) > 0 and
+        all(.responses[];
+            ((.rc // 0) | type) == "number" and
+            ((.scenario | type) == "string" and (.scenario | test("^[a-z0-9._-]+$"))) and
+            ((.sequence | type) == "number" and .sequence >= 0) and
+            ((.capture_sequence | type) == "number" and .capture_sequence >= 0) and
+            ((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))))
+        ' "$fixture" >/dev/null; then
+        echo "FAIL: $label: invalid command or responses"
         fail=1
         continue
     fi
diff --git a/application/qmodem/tests/test_vendor_fixtures.sh b/application/qmodem/tests/test_vendor_fixtures.sh
index bbcbb575..9d9c7908 100755
--- a/application/qmodem/tests/test_vendor_fixtures.sh
+++ b/application/qmodem/tests/test_vendor_fixtures.sh
@@ -77,12 +77,27 @@ for profile_dir in "${profile_dirs[@]}"; do
 
     LOOKUP=$(mktemp -d)
     CMDS_LIST="$LOOKUP/commands.txt"
+    SCENARIOS="$LOOKUP/scenarios.txt"
     : > "$CMDS_LIST"
+    : > "$SCENARIOS"
     for f in "$profile_dir"/*.json; do
         [ -f "$f" ] || continue
         fixture_vendor=$(jq -r '.vendor // empty' "$f")
         fixture_platform=$(jq -r '.platform // empty' "$f")
         current_model=$(jq -r '.model // empty' "$f")
+        if ! jq -e '
+            (.responses | type) == "array" and (.responses | length) > 0 and
+            all(.responses[];
+                ((.scenario | type) == "string" and (.scenario | test("^[a-z0-9._-]+$"))) and
+                ((.sequence | type) == "number" and .sequence >= 0) and
+                ((.capture_sequence | type) == "number" and .capture_sequence >= 0) and
+                ((.rc // 0) | type) == "number" and
+                (((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))) or
+                 (.response != null)))' "$f" >/dev/null; then
+            echo "FAIL: $profile_label: invalid responses in $(basename "$f")"
+            fail=1
+            continue
+        fi
         if [ "$fixture_vendor" != "$profile_vendor_value" ] || \
            [ "$fixture_platform" != "$profile_platform_value" ] || \
            [ "$current_model" != "$fixture_model" ]; then
@@ -92,18 +107,30 @@ for profile_dir in "${profile_dirs[@]}"; do
         fi
         cmd=$(jq -r '.command' "$f")
         h=$(printf '%s' "$cmd" | md5sum | cut -c1-8)
-        if [ -e "$LOOKUP/$h.response" ]; then
+        if [ -d "$LOOKUP/$h.responses" ]; then
             echo "FAIL: $profile_label: duplicate command fixture: $cmd"
             fail=1
             continue
         fi
-        response_hex=$(jq -r '.response_hex // empty' "$f")
-        if [ -n "$response_hex" ]; then
-            fixture_hex_decode "$response_hex" > "$LOOKUP/$h.response"
-        else
-            jq -j '.response' "$f" > "$LOOKUP/$h.response"
-        fi
-        jq -r '.rc // 0' "$f" > "$LOOKUP/$h.rc"
+        mkdir -p "$LOOKUP/$h.responses"
+        while IFS= read -r response; do
+            scenario=$(jq -r '.scenario // "default"' <<< "$response")
+            if [ "$(profile_segment "$scenario" default)" != "$scenario" ]; then
+                echo "FAIL: $profile_label: invalid response scenario '$scenario' in $(basename "$f")"
+                fail=1
+                continue
+            fi
+            mkdir -p "$LOOKUP/$h.responses/$scenario"
+            response_index=$(find "$LOOKUP/$h.responses/$scenario" -name '*.response' | wc -l)
+            response_hex=$(jq -r '.response_hex // empty' <<< "$response")
+            if [ -n "$response_hex" ]; then
+                fixture_hex_decode "$response_hex" > "$LOOKUP/$h.responses/$scenario/$response_index.response"
+            else
+                jq -j '.response' <<< "$response" > "$LOOKUP/$h.responses/$scenario/$response_index.response"
+            fi
+            jq -r '.rc // 0' <<< "$response" > "$LOOKUP/$h.responses/$scenario/$response_index.rc"
+            printf '%s\n' "$scenario" >> "$SCENARIOS"
+        done < <(jq -c '.responses | sort_by(.scenario // "default", .sequence // 0)[]' "$f")
         printf '%s\n' "$cmd" >> "$CMDS_LIST"
     done
 
@@ -118,84 +145,99 @@ for profile_dir in "${profile_dirs[@]}"; do
         fi
     done < "$CMDS_LIST"
 
-    (
-    . "$TESTS_DIR/lib/test_env.sh"
-    vendor="$vendor"
-    platform="$profile_platform"
-    QMODEM_TESTCASE_MODEL="$fixture_model"
-    QMODEM_TESTCASE_MODES="$fixture_modes"
-    export vendor platform QMODEM_TESTCASE_MODEL QMODEM_TESTCASE_MODES
-    . "$QMODEM_JSHN"
-    . "$vendor_file"
-    . "$cmds_file"
-    FIXTURE_LOOKUP="$LOOKUP"
-    export FIXTURE_LOOKUP
-    . "$TESTS_DIR/lib/at_fixture.sh"
-
-    for fixture in "$profile_dir"/*.json; do
-        [ -f "$fixture" ] || continue
-        fixture_cmd=$(jq -r '.command' "$fixture")
-        fixture_tool=$(jq -r '.tool // "at"' "$fixture")
-        fixture_rc=$(jq -r '.rc // 0' "$fixture")
-        expected_file="$LOOKUP/expected.response"
-        replayed_file="$LOOKUP/replayed.response"
-        fixture_hex=$(jq -r '.response_hex // empty' "$fixture")
-        if [ -n "$fixture_hex" ]; then
-            fixture_hex_decode "$fixture_hex" > "$expected_file"
-        else
-            jq -j '.response' "$fixture" > "$expected_file"
-        fi
-        "$fixture_tool" "$at_port" "$fixture_cmd" > "$replayed_file"
-        replayed_rc=$?
-        if [ "$replayed_rc" -ne "$fixture_rc" ] || ! cmp "$expected_file" "$replayed_file"; then
-            echo "FAIL: $profile_label: fixture replay mismatch: $(basename "$fixture")"
-            exit 1
-        fi
-    done
+    while IFS= read -r fixture_scenario; do
+        [ -n "$fixture_scenario" ] || continue
+        (
+        . "$TESTS_DIR/lib/test_env.sh"
+        vendor="$vendor"
+        platform="$profile_platform"
+        QMODEM_TESTCASE_MODEL="$fixture_model"
+        QMODEM_TESTCASE_MODES="$fixture_modes"
+        FIXTURE_LOOKUP="$LOOKUP"
+        FIXTURE_SCENARIO="$fixture_scenario"
+        export vendor platform QMODEM_TESTCASE_MODEL QMODEM_TESTCASE_MODES
+        export FIXTURE_LOOKUP FIXTURE_SCENARIO
+        . "$QMODEM_JSHN"
+        . "$vendor_file"
+        . "$cmds_file"
+        mkdir -p "$FIXTURE_LOOKUP/cursors"
+        . "$TESTS_DIR/lib/at_fixture.sh"
 
-    for exp in "$profile_dir"/expected/*.json; do
-        [ -f "$exp" ] || continue
-        method=$(basename "$exp" .json)
-        case "$method" in
-            base_info|cell_info|get_*) ;;
-            *) echo "WARN: $profile_label: refusing non-read-only snapshot method: $method"; continue ;;
-        esac
-        if ! command -v "$method" >/dev/null; then
-            echo "WARN: $profile_label: $method not defined, skipping snapshot"
-            continue
-        fi
-        json_init
-        json_add_object result
-        json_close_object
-        case "$method" in
-            base_info|cell_info)
-                json_add_array modem_info
-                "$method"
-                json_close_array
-                ;;
-            *) "$method" ;;
-        esac
-        out=$(json_dump)
-        rc=$?
-        if [ "$rc" -ne 0 ] || ! printf '%s' "$out" | jq -e . >/dev/null 2>&1; then
-            echo "FAIL: $profile_label: $method failed (rc=$rc) or emitted invalid JSON"
-            exit 1
-        fi
-        if ! diff <(jq -S . "$exp") <(printf '%s' "$out" | jq -S .) >/dev/null; then
-            echo "FAIL: $profile_label: $method differs from expected/$method.json:"
-            diff <(jq -S . "$exp") <(printf '%s' "$out" | jq -S .) | head -20
-            exit 1
-        fi
-        echo "OK: $profile_label: $method matches golden snapshot"
-    done
+        # First prove the queue preserves every recorded byte sequence and rc.
+        rm -f "$FIXTURE_LOOKUP/cursors"/*
+        for fixture in "$profile_dir"/*.json; do
+            [ -f "$fixture" ] || continue
+            fixture_cmd=$(jq -r '.command' "$fixture")
+            fixture_tool=$(jq -r '.tool // "at"' "$fixture")
+            while IFS= read -r response; do
+                fixture_rc=$(jq -r '.rc // 0' <<< "$response")
+                fixture_hex=$(jq -r '.response_hex // empty' <<< "$response")
+                expected_file="$LOOKUP/expected.response"
+                replayed_file="$LOOKUP/replayed.response"
+                if [ -n "$fixture_hex" ]; then
+                    fixture_hex_decode "$fixture_hex" > "$expected_file"
+                else
+                    jq -j '.response' <<< "$response" > "$expected_file"
+                fi
+                "$fixture_tool" "$at_port" "$fixture_cmd" > "$replayed_file"
+                replayed_rc=$?
+                if [ "$replayed_rc" -ne "$fixture_rc" ] || ! cmp "$expected_file" "$replayed_file"; then
+                    echo "FAIL: $profile_label/$fixture_scenario: queue replay mismatch: $(basename "$fixture")"
+                    exit 1
+                fi
+            done < <(jq -c --arg scenario "$fixture_scenario" \
+                '.responses | map(select((.scenario // "default") == $scenario)) | sort_by(.sequence // 0)[]' "$fixture")
+        done
+
+        expected_dir="$profile_dir/expected/$fixture_scenario"
+        for exp in "$expected_dir"/*.json; do
+            [ -f "$exp" ] || continue
+            method=$(basename "$exp" .json)
+            case "$method" in
+                base_info|cell_info|get_*) ;;
+                *) echo "WARN: $profile_label/$fixture_scenario: refusing non-read-only snapshot: $method"; continue ;;
+            esac
+            if ! command -v "$method" >/dev/null; then
+                echo "WARN: $profile_label/$fixture_scenario: $method not defined, skipping snapshot"
+                continue
+            fi
+            rm -f "$FIXTURE_LOOKUP/cursors"/* "$FIXTURE_LOOKUP/misses.log"
+            out=$(
+                json_init
+                json_add_object result
+                json_close_object
+                case "$method" in
+                    base_info|cell_info)
+                        json_add_array modem_info
+                        "$method"
+                        json_close_array
+                        ;;
+                    *) "$method" ;;
+                esac
+                json_dump
+            )
+            rc=$?
+            if [ -s "$FIXTURE_LOOKUP/misses.log" ]; then
+                echo "FAIL: $profile_label/$fixture_scenario: $method exhausted or missed fixture responses"
+                sed 's/^/  /' "$FIXTURE_LOOKUP/misses.log"
+                exit 1
+            fi
+            if [ "$rc" -ne 0 ] || ! printf '%s' "$out" | jq -e . >/dev/null 2>&1; then
+                echo "FAIL: $profile_label/$fixture_scenario: $method failed (rc=$rc) or emitted invalid JSON"
+                exit 1
+            fi
+            if ! diff <(jq -S . "$exp") <(printf '%s' "$out" | jq -S .) >/dev/null; then
+                echo "FAIL: $profile_label/$fixture_scenario: $method differs from expected snapshot:"
+                diff <(jq -S . "$exp") <(printf '%s' "$out" | jq -S .) | head -20
+                exit 1
+            fi
+            echo "OK: $profile_label/$fixture_scenario: $method matches golden snapshot"
+        done
 
-    echo "OK: $profile_label: replay passed"
-    ) || fail=1
+        echo "OK: $profile_label/$fixture_scenario: replay passed"
+        ) || fail=1
+    done < <(sort -u "$SCENARIOS")
 
-    if [ -f "$LOOKUP/misses.log" ]; then
-        echo "INFO: $profile_label: commands used but without fixtures:"
-        sort -u "$LOOKUP/misses.log" | sed 's/^/  /' | head -10
-    fi
     rm -rf "$LOOKUP"
 done
 
diff --git a/scripts/import_testcases.sh b/scripts/import_testcases.sh
index a7de5cd4..15e7da1c 100755
--- a/scripts/import_testcases.sh
+++ b/scripts/import_testcases.sh
@@ -5,17 +5,46 @@ set -eu
 [ $# -ge 1 ] || { echo "usage: $0 <qmodem_testcases_*.tar.gz>" >&2; exit 1; }
 tarball="$1"
 [ -f "$tarball" ] || { echo "not found: $tarball" >&2; exit 1; }
-repo_root=$(CDPATH= cd "$(dirname "$0")/.." && pwd)
+repo_root=${QMODEM_TEST_REPO_ROOT:-$(CDPATH= cd "$(dirname "$0")/.." && pwd)}
 
 tmp=$(mktemp -d)
 trap 'rm -rf "$tmp"' EXIT
 tar -xzf "$tarball" -C "$tmp"
 
+# Legacy snapshots had no state boundary. Place them in the default scenario.
+find "$tmp" -type f -name '*.json' -path '*/expected/*.json' | while IFS= read -r f; do
+    [ "$(basename "$(dirname "$f")")" = expected ] || continue
+    mkdir -p "$(dirname "$f")/default"
+    mv "$f" "$(dirname "$f")/default/$(basename "$f")"
+done
+
 # validate every fixture before merging; archives may contain fixtures only
 fixture_list="$tmp/fixture-list"
 find "$tmp" -name '*.json' -type f > "$fixture_list"
 [ -s "$fixture_list" ] || { echo "archive contains no fixtures" >&2; exit 1; }
 while IFS= read -r f; do
+    case "$f" in
+        */expected/*) ;;
+        *)
+            if ! jq -e 'has("responses")' "$f" >/dev/null 2>&1; then
+                normalized="${f}.normalized"
+                jq '.responses=[{response_hex:(.response_hex // ""), response:.response,
+                                  rc:(.rc // 0), timestamp:(.timestamp // ""),
+                                  scenario:"default", sequence:0, capture_sequence:0}]
+                    | .responses |= map(if .response == null then del(.response) else . end)
+                    | del(.response_hex, .response, .rc, .timestamp)' "$f" > "$normalized" || {
+                        echo "invalid legacy fixture: $f" >&2
+                        exit 1
+                    }
+                mv "$normalized" "$f"
+            fi
+            normalized="${f}.normalized"
+            jq '.responses |= to_entries | .responses |= map(
+                    .value + {scenario:(.value.scenario // "default"), sequence:(.value.sequence // .key),
+                              capture_sequence:(.value.capture_sequence // .value.sequence // .key)})' \
+                "$f" > "$normalized" && mv "$normalized" "$f"
+            ;;
+    esac
     case "$f" in
         "$tmp"/recognition/pending/*)
             echo "unresolved recognition fixture: $f" >&2
@@ -24,11 +53,25 @@ while IFS= read -r f; do
         "$tmp"/recognition/*/*/*/*.json)
             filter='.phase == "recognition" and .config_section and .command and
                 (.expected_identity.vendor and .expected_identity.platform and .expected_identity.model) and
-                (((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))) or (.response != null))'
+                ((.responses | type) == "array" and (.responses | length) > 0) and
+                all(.responses[];
+                    ((.scenario | type) == "string" and (.scenario | test("^[a-z0-9._-]+$"))) and
+                    ((.sequence | type) == "number" and .sequence >= 0) and
+                    ((.capture_sequence | type) == "number" and .capture_sequence >= 0) and
+                    ((.rc // 0) | type) == "number" and
+                    (((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))) or
+                     (.response != null)))'
             ;;
-        "$tmp"/*/*/*/expected/*.json) filter='type == "object"' ;;
+        "$tmp"/*/*/*/expected/*/*.json) filter='type == "object"' ;;
         "$tmp"/*/*/*/*.json) filter='.vendor and .platform and .model and .command and
-            (((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))) or (.response != null))' ;;
+            ((.responses | type) == "array" and (.responses | length) > 0) and
+            all(.responses[];
+                ((.scenario | type) == "string" and (.scenario | test("^[a-z0-9._-]+$"))) and
+                ((.sequence | type) == "number" and .sequence >= 0) and
+                ((.capture_sequence | type) == "number" and .capture_sequence >= 0) and
+                ((.rc // 0) | type) == "number" and
+                (((.response_hex | type) == "string" and (.response_hex | test("^([0-9a-fA-F]{2})*$"))) or
+                 (.response != null)))' ;;
         *)
             echo "invalid fixture path (expected vendor/platform/model): $f" >&2
             exit 1
@@ -40,14 +83,26 @@ while IFS= read -r f; do
     }
 done < "$fixture_list"
 
-# merge (same relative path overwrites; filename = command hash, so reruns dedupe)
+# Merge command responses by scenario. Expected snapshots remain scenario-specific files.
 cd "$tmp"
 find . -name '*.json' -type f > "$fixture_list"
 while IFS= read -r f; do
     rel=${f#./}
     dst="$repo_root/testcases/$rel"
     mkdir -p "$(dirname "$dst")"
-    cp "$f" "$dst"
+    if [ -f "$dst" ] && [ "${rel#*/expected/}" = "$rel" ]; then
+        merged="${dst}.merged"
+        jq -s '
+          .[0] as $old | .[1] as $new | ($old * $new)
+          | .responses = ([$old.responses[], $new.responses[]]
+              | unique_by([.scenario, .capture_sequence, .timestamp, .response_hex, .response, .rc])
+              | group_by(.scenario)
+              | map(sort_by(.sequence) | to_entries | map(.value + {sequence:.key}))
+              | add)
+        ' "$dst" "$f" > "$merged" && mv "$merged" "$dst"
+    else
+        cp "$f" "$dst"
+    fi
 done < "$fixture_list"
 cd "$repo_root"
 
diff --git a/testcases/README.md b/testcases/README.md
index 325c9207..1814c852 100644
--- a/testcases/README.md
+++ b/testcases/README.md
@@ -14,7 +14,8 @@ testcases/
       <model-slug>-<model-md5前8位>/ # 同名、空格和特殊字符不会造成目录冲突
         AT_CGSN-7c58b773.json        # 一条指令的采集记录
         expected/
-          get_imei.json              # 该型号/平台专属的黄金输出
+          registered/
+            get_imei.json            # 该型号、场景专属的黄金输出
 ```
 
 ## fixture 格式
@@ -25,18 +26,26 @@ testcases/
   "platform": "qualcomm",
   "model": "RM500Q-AE",
   "command": "AT+CGSN",
-  "response_hex": "41542b4347534e0d0d0a3836303030303030303030303031320d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-07T00:00:00Z",
+  "responses": [
+    {
+      "response_hex": "41542b4347534e0d0a3836303030303030303030303031320d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-07T00:00:00Z",
+      "scenario": "registered",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ],
   "sanitized": true
 }
 ```
 
 - `command`：实际发送的完整 AT 指令（含参数）。
 - `vendor`、`platform`、`model`：采集时的厂商、平台和 UCI `name`（Modem Model）。回放以三者组成的设备画像为边界；同一条 AT 指令可以在不同画像中保存不同响应。
+- `responses`：同一命令在不同设备或状态下采集的返回队列。`scenario` 标识一组可同时成立的设备状态，`sequence` 表示该场景内同一命令的回放顺序；`capture_sequence` 是采集时的稳定编号，供重复导入去重。即使返回字节相同，重复调用也会保留。
 - `response_hex`：模组原始 stdout 的十六进制编码，由 `xxd -p` 生成；可无损保存 CR/LF、尾部换行及任意二进制字节。
-- `tool`：`at` 或 `fastat`；`rc`：发送工具的退出码。
+- `tool`：`at` 或 `fastat`；每个 response 的 `rc` 是发送工具退出码。
 - `sanitized`：`qmodem_collect pack` 默认脱敏（≥11 位数字串保留头2尾2、中间置 0，长度不变），标记为 true；`pack --raw` 可关闭脱敏（注意隐私）。
 - `capabilities.modes`：仅用于不在 `modem_support.json` 中的合成 fixture；真实型号的拨号模式由 runner 从能力表读取。
 
@@ -52,6 +61,7 @@ testcases/
 
 ```sh
 uci set qmodem.main.testcase_collect=1 && uci commit qmodem
+uci set qmodem.main.testcase_scenario=registered && uci commit qmodem
 # 通过 LuCI / ubus / CLI 触发各功能（base_info、cell_info、锁频、锁小区……）
 qmodem_collect status        # 查看已采集数量
 qmodem_collect pack          # 默认脱敏并加密到 /tmp/qmodem_feedback_<时间戳>.tar
@@ -101,8 +111,8 @@ bash application/qmodem/tests/test_recognition_fixtures.sh
 三层校验：
 
 1. fixture 的路径必须与 `vendor/platform/model` 元数据一致，且指令头仍存在于对应 `cmds/<vendor>.sh`；
-2. 每个设备画像建立独立命令响应表，用 fixture 回放 `at`/`fastat`；不同型号或平台不会互相覆盖；
-3. vendor 只读方法必须退出码 0 且输出合法 JSON；
-4. 存在画像专属 `expected/<method>.json` 时，方法输出经 `jq -S` 归一化后与快照精确比对。
+2. 每个设备画像按 scenario 建立独立命令队列，用 fixture 顺序回放 `at`/`fastat`；不同状态不会被拼成一个不存在的混合状态；
+3. 场景内命令响应缺失或队列耗尽会直接失败，不会被当作空响应成功；
+4. 存在 `expected/<scenario>/<method>.json` 时，方法输出经 `jq -S` 归一化后与该场景快照精确比对。
 
 末尾会打印 cmds 指令的 fixture 覆盖报告（仅提示，不失败——覆盖率依赖真机捐赠）。
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_BAND_-880751ee.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_BAND_-880751ee.json
index 59c2aeb0..4ee1dcfc 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_BAND_-880751ee.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_BAND_-880751ee.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT*BAND?",
-  "response_hex": "41542a42414e443f0d0a0d0a2b434d45204552524f523a20696e76616c696420636f6d6d616e64206c696e650d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:14Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542a42414e443f0d0a0d0a2b434d45204552524f523a20696e76616c696420636f6d6d616e64206c696e650d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:14Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CBC-128cd781.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CBC-128cd781.json
index 9f263c48..121cf881 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CBC-128cd781.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CBC-128cd781.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CBC",
-  "response_hex": "41542b4342430d0a0d0a2b4342433a20312c38342c343031340d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b4342430d0a0d0a2b4342433a20312c38342c343031340d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CCED_0_1-8d495ebe.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CCED_0_1-8d495ebe.json
index e2c16b08..45aa9129 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CCED_0_1-8d495ebe.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CCED_0_1-8d495ebe.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CCED=0,1",
-  "response_hex": "41542b434345443d302c310d0a0d0a2b434345443a4c54452063757272656e742063656c6c3a3436302c31312c3436303030303030303030303039302c302c332c6e3130302c313635302c3131313734323838312c35312c31392c363334322c33382c38310d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b434345443d302c310d0a0d0a2b434345443a4c54452063757272656e742063656c6c3a3436302c31312c3436303030303030303030303039302c302c332c6e3130302c313635302c3131313734323838312c35312c31392c363334322c33382c38310d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CESQ-61420008.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CESQ-61420008.json
index ce546cb6..4e1d22b7 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CESQ-61420008.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CESQ-61420008.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CESQ",
-  "response_hex": "41542b434553510d0a0d0a2b434553513a2039392c39392c3235352c3235352c31392c35310d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:17Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b434553510d0a0d0a2b434553513a2039392c39392c3235352c3235352c31392c35310d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:17Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGACT_-a446511b.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGACT_-a446511b.json
index 5df99a23..1ccdd277 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGACT_-a446511b.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGACT_-a446511b.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGACT?",
-  "response_hex": "41542b43474143543f0d0a0d0a2b43474143543a20352c20310d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43474143543f0d0a0d0a2b43474143543a20352c20310d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMI-89cca6a4.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMI-89cca6a4.json
index e8b5a606..3330973b 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMI-89cca6a4.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMI-89cca6a4.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGMI",
-  "response_hex": "41542b43474d490d0a0d0a2b43474d493a2022220d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43474d490d0a0d0a2b43474d493a2022220d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
index fc262da9..34028e0e 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGMM",
-  "response_hex": "41542b43474d4d0d0a0d0a2b43474d4d3a20224169723732345547220d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43474d4d0d0a0d0a2b43474d4d3a20224169723732345547220d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMR-4b35c614.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMR-4b35c614.json
index b647a970..0c5c81d6 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMR-4b35c614.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGMR-4b35c614.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGMR",
-  "response_hex": "41542b43474d520d0a0d0a2b43474d523a20224c7561744f532d4169725f56343033325f524441383931305f5454535f4e4f4c56474c5f464c4f4154220d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43474d520d0a0d0a2b43474d523a20224c7561744f532d4169725f56343033325f524441383931305f5454535f4e4f4c56474c5f464c4f4154220d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGPADDR_5-adeff2de.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGPADDR_5-adeff2de.json
index e4f666c9..a3fdeaa1 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGPADDR_5-adeff2de.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGPADDR_5-adeff2de.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGPADDR=5",
-  "response_hex": "41542b434750414444523d350d0a0d0a2b434750414444523a20352c22495056343a31302e33322e3134302e31323220202020495056363a3a3a313843393a434533333a393742373a37354244220d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:24Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b434750414444523d350d0a0d0a2b434750414444523a20352c22495056343a31302e33322e3134302e31323220202020495056363a3a3a313843393a434533333a393742373a37354244220d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:24Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGSN-7c58b773.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGSN-7c58b773.json
index 986da4f5..993e63e3 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CGSN-7c58b773.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CGSN-7c58b773.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CGSN",
-  "response_hex": "41542b4347534e0d0a0d0a3836303030303030303030303039320d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:15Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b4347534e0d0a0d0a3836303030303030303030303039320d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:15Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CIMI-a35d2cb4.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CIMI-a35d2cb4.json
index 4bb33ee0..d43a855a 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CIMI-a35d2cb4.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CIMI-a35d2cb4.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CIMI",
-  "response_hex": "41542b43494d490d0a0d0a3436303030303030303030303039300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43494d490d0a0d0a3436303030303030303030303039300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CNUM-1ac209a6.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CNUM-1ac209a6.json
index 8119dcd9..78296b72 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CNUM-1ac209a6.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CNUM-1ac209a6.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CNUM",
-  "response_hex": "41542b434e554d0d0a0d0a2b434e554d3a2022222c222b38363030303030303030303737222c3134350d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b434e554d0d0a0d0a2b434e554d3a2022222c222b38363030303030303030303737222c3134350d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_COPS_-99f371b4.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_COPS_-99f371b4.json
index 4355cfb5..b09032b1 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_COPS_-99f371b4.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_COPS_-99f371b4.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+COPS?",
-  "response_hex": "41542b434f50533f0d0a0d0a2b434f50533a20302c322c223436303131222c370d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b434f50533f0d0a0d0a2b434f50533a20302c322c223436303131222c370d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CPIN_-cc2cd68a.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CPIN_-cc2cd68a.json
index e280c316..f660a0a1 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CPIN_-cc2cd68a.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CPIN_-cc2cd68a.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CPIN?",
-  "response_hex": "41542b4350494e3f0d0a0d0a2b4350494e3a2052454144590d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:15Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b4350494e3f0d0a0d0a2b4350494e3a2052454144590d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:15Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CPMS_-8a28a28e.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CPMS_-8a28a28e.json
index 73177aca..a2c7e684 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CPMS_-8a28a28e.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CPMS_-8a28a28e.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CPMS?",
-  "response_hex": "41542b43504d533f0d0a0d0a2b43504d533a2022534d222c302c34302c22534d222c302c34302c22534d222c302c34300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:58Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b43504d533f0d0a0d0a2b43504d533a2022534d222c302c34302c22534d222c302c34302c22534d222c302c34300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:58Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CSQ-fecb12e1.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CSQ-fecb12e1.json
index d1e8fc04..a601458e 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CSQ-fecb12e1.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CSQ-fecb12e1.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CSQ",
-  "response_hex": "41542b4353510d0a0d0a2b4353513a2032372c39390d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b4353510d0a0d0a2b4353513a2032372c39390d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_CTEC_-117d6151.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_CTEC_-117d6151.json
index bc2f5b83..935eed44 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_CTEC_-117d6151.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_CTEC_-117d6151.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+CTEC?",
-  "response_hex": "41542b435445433f0d0a0d0a2b435445433a20302c300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:11Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b435445433f0d0a0d0a2b435445433a20302c300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:11Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMGINFO_-a1208af7.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMGINFO_-a1208af7.json
index 33861e1f..40ecdbfa 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMGINFO_-a1208af7.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMGINFO_-a1208af7.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+EEMGINFO?",
-  "response_hex": "41542b45454d47494e464f3f0d0a0d0a2b45454d47494e464f3a20332c20320d0a0d0a4f4b0d0a0d0a2b45454d4c54455356433a20313132302c20322c2031372c20363334322c2038312c20313635302c20313635302c20332c20352c203131313734323838312c2036353533352c2035312c2032312c20362c2035312c2032312c2035312c2032312c2036353533352c20302c203235352c20302c20302c20302c20302c20302c2036353533352c20302c20302c20300d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:17Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b45454d47494e464f3f0d0a0d0a2b45454d47494e464f3a20332c20320d0a0d0a4f4b0d0a0d0a2b45454d4c54455356433a20313132302c20322c2031372c20363334322c2038312c20313635302c20313635302c20332c20352c203131313734323838312c2036353533352c2035312c2032312c20362c2035312c2032312c2035312c2032312c2036353533352c20302c203235352c20302c20302c20302c20302c20302c2036353533352c20302c20302c20300d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:17Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMOPT_1-1e854f5d.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMOPT_1-1e854f5d.json
index 23c01566..eb4d3d53 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMOPT_1-1e854f5d.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_EEMOPT_1-1e854f5d.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+EEMOPT=1",
-  "response_hex": "41542b45454d4f50543d310d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:17Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b45454d4f50543d310d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:17Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_ICCID-ba93350e.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_ICCID-ba93350e.json
index 7d93366e..ba410c74 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_ICCID-ba93350e.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_ICCID-ba93350e.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+ICCID",
-  "response_hex": "41542b49434349440d0a0d0a2b49434349443a2038393030303030303030303030303030303032320d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:16Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b49434349440d0a0d0a2b49434349443a2038393030303030303030303030303030303032320d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:16Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_RNDISCALL_0_0-b24cd777.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_RNDISCALL_0_0-b24cd777.json
index 6912fd0a..bec05d08 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_RNDISCALL_0_0-b24cd777.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_RNDISCALL_0_0-b24cd777.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+RNDISCALL=0,0",
-  "response_hex": "41542b524e44495343414c4c3d302c300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:53Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b524e44495343414c4c3d302c300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:53Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_-b51511f9.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_-b51511f9.json
index dafe8ec8..c2520ec8 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_-b51511f9.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_-b51511f9.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+SETUSB?",
-  "response_hex": "41542b5345545553423f0d0a0d0a6d6f64653a20320d0a5669643a203078313738320d0a5069643a203078346530300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:10Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b5345545553423f0d0a0d0a6d6f64653a20320d0a5669643a203078313738320d0a5069643a203078346530300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:10Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_1-af4420f4.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_1-af4420f4.json
index b0bcf1c1..77e9d5ca 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_1-af4420f4.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_1-af4420f4.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+SETUSB=1",
-  "response_hex": "41542b5345545553423d310d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:35Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b5345545553423d310d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:35Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_2-669c241f.json b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_2-669c241f.json
index ea824165..f942375d 100644
--- a/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_2-669c241f.json
+++ b/testcases/openluat/unisoc/air724ug-c9340434/AT_SETUSB_2-669c241f.json
@@ -3,9 +3,16 @@
   "platform": "unisoc",
   "model": "air724ug",
   "command": "AT+SETUSB=2",
-  "response_hex": "41542b5345545553423d320d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:55:53Z",
-  "sanitized": true
+  "sanitized": true,
+  "responses": [
+    {
+      "response_hex": "41542b5345545553423d320d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:55:53Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/base_info.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/base_info.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/base_info.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/base_info.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/delete_sms.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/delete_sms.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/delete_sms.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/delete_sms.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/get_disabled_features.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_disabled_features.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/get_disabled_features.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_disabled_features.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/get_lockband.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_lockband.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/get_lockband.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_lockband.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/get_mode.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_mode.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/get_mode.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_mode.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/get_network_prefer.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_network_prefer.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/get_network_prefer.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/get_network_prefer.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/info.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/info.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/info.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/info.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/send_raw_pdu.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/send_raw_pdu.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/send_raw_pdu.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/send_raw_pdu.json
diff --git a/testcases/openluat/unisoc/air724ug-c9340434/expected/set_mode.json b/testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/set_mode.json
similarity index 100%
rename from testcases/openluat/unisoc/air724ug-c9340434/expected/set_mode.json
rename to testcases/openluat/unisoc/air724ug-c9340434/expected/feedback-20260808/set_mode.json
diff --git a/testcases/quectel/qualcomm/example-1a79a4d6/AT_CGSN-7c58b773.json b/testcases/quectel/qualcomm/example-1a79a4d6/AT_CGSN-7c58b773.json
index a59e96db..70aece70 100644
--- a/testcases/quectel/qualcomm/example-1a79a4d6/AT_CGSN-7c58b773.json
+++ b/testcases/quectel/qualcomm/example-1a79a4d6/AT_CGSN-7c58b773.json
@@ -2,12 +2,27 @@
   "vendor": "quectel",
   "platform": "qualcomm",
   "model": "example",
-  "capabilities": { "modes": ["qmi", "ecm", "mbim", "rndis", "ncm"] },
+  "capabilities": {
+    "modes": [
+      "qmi",
+      "ecm",
+      "mbim",
+      "rndis",
+      "ncm"
+    ]
+  },
   "command": "AT+CGSN",
-  "response_hex": "41542b4347534e0d0d0a3836303030303030303030303031320d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-07T00:00:00Z",
   "sanitized": true,
-  "source": "example"
+  "source": "example",
+  "responses": [
+    {
+      "response_hex": "41542b4347534e0d0d0a3836303030303030303030303031320d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-07T00:00:00Z",
+      "scenario": "default",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/quectel/qualcomm/example-1a79a4d6/AT_QCFG__usbnet_-f2c91ace.json b/testcases/quectel/qualcomm/example-1a79a4d6/AT_QCFG__usbnet_-f2c91ace.json
index 8a75d26d..83d15b2e 100644
--- a/testcases/quectel/qualcomm/example-1a79a4d6/AT_QCFG__usbnet_-f2c91ace.json
+++ b/testcases/quectel/qualcomm/example-1a79a4d6/AT_QCFG__usbnet_-f2c91ace.json
@@ -2,12 +2,27 @@
   "vendor": "quectel",
   "platform": "qualcomm",
   "model": "example",
-  "capabilities": { "modes": ["qmi", "ecm", "mbim", "rndis", "ncm"] },
+  "capabilities": {
+    "modes": [
+      "qmi",
+      "ecm",
+      "mbim",
+      "rndis",
+      "ncm"
+    ]
+  },
   "command": "AT+QCFG=\"usbnet\"",
-  "response_hex": "41542b514346473d227573626e6574220d0d0a2b514346473a20227573626e6574222c300d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-07T00:00:00Z",
   "sanitized": true,
-  "source": "example"
+  "source": "example",
+  "responses": [
+    {
+      "response_hex": "41542b514346473d227573626e6574220d0d0a2b514346473a20227573626e6574222c300d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-07T00:00:00Z",
+      "scenario": "default",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/quectel/qualcomm/example-1a79a4d6/expected/get_imei.json b/testcases/quectel/qualcomm/example-1a79a4d6/expected/default/get_imei.json
similarity index 100%
rename from testcases/quectel/qualcomm/example-1a79a4d6/expected/get_imei.json
rename to testcases/quectel/qualcomm/example-1a79a4d6/expected/default/get_imei.json
diff --git a/testcases/quectel/qualcomm/example-1a79a4d6/expected/get_mode.json b/testcases/quectel/qualcomm/example-1a79a4d6/expected/default/get_mode.json
similarity index 100%
rename from testcases/quectel/qualcomm/example-1a79a4d6/expected/get_mode.json
rename to testcases/quectel/qualcomm/example-1a79a4d6/expected/default/get_mode.json
diff --git a/testcases/recognition/openluat/unisoc/air724ug-c9340434/ATI-9226517c.json b/testcases/recognition/openluat/unisoc/air724ug-c9340434/ATI-9226517c.json
index bf369a8e..b8425936 100644
--- a/testcases/recognition/openluat/unisoc/air724ug-c9340434/ATI-9226517c.json
+++ b/testcases/recognition/openluat/unisoc/air724ug-c9340434/ATI-9226517c.json
@@ -3,10 +3,7 @@
   "platform": "unknown",
   "model": "unknown",
   "command": "ATI",
-  "response_hex": "4154490d0a0d0a4c7561744f532d4169725f56343033325f524441383931305f5454535f4e4f4c56474c5f464c4f41540d0a0d0a4f4b0d0a",
   "tool": "fastat",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:05Z",
   "sanitized": true,
   "phase": "recognition",
   "config_section": "legacy-import",
@@ -14,5 +11,15 @@
     "vendor": "openluat",
     "platform": "unisoc",
     "model": "air724ug"
-  }
+  },
+  "responses": [
+    {
+      "response_hex": "4154490d0a0d0a4c7561744f532d4169725f56343033325f524441383931305f5454535f4e4f4c56474c5f464c4f41540d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:05Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }
diff --git a/testcases/recognition/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json b/testcases/recognition/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
index e3bacf1a..8861c869 100644
--- a/testcases/recognition/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
+++ b/testcases/recognition/openluat/unisoc/air724ug-c9340434/AT_CGMM-bb33552b.json
@@ -3,10 +3,7 @@
   "platform": "unknown",
   "model": "unknown",
   "command": "AT+CGMM",
-  "response_hex": "41542b43474d4d0d0a0d0a2b43474d4d3a20224169723732345547220d0a0d0a4f4b0d0a",
   "tool": "at",
-  "rc": 0,
-  "timestamp": "2026-08-08T10:56:05Z",
   "sanitized": true,
   "phase": "recognition",
   "config_section": "legacy-import",
@@ -14,5 +11,15 @@
     "vendor": "openluat",
     "platform": "unisoc",
     "model": "air724ug"
-  }
+  },
+  "responses": [
+    {
+      "response_hex": "41542b43474d4d0d0a0d0a2b43474d4d3a20224169723732345547220d0a0d0a4f4b0d0a",
+      "rc": 0,
+      "timestamp": "2026-08-08T10:56:05Z",
+      "scenario": "feedback-20260808",
+      "sequence": 0,
+      "capture_sequence": 0
+    }
+  ]
 }