Add unit_call_alert for P25 Call Alert (TSBK 0x1F) messages#8
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Add unit_call_alert for P25 Call Alert (TSBK 0x1F) messages#8hoosierscanner wants to merge 1 commit into
hoosierscanner wants to merge 1 commit into
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Publishes directed unit-to-unit page events to MQTT when trunk-recorder
decodes a Call Alert (TSBK opcode 0x1F). Call Alerts contain only source
and target unit IDs — no audio, no talkgroup.
Topic: topic_unit/<shortname>/call_alert
Payload:
{
"sys_num": 1,
"sys_name": "pscsite4",
"unit": 4810011,
"unit_alpha_tag": "",
"target_unit": 4811289,
"target_unit_alpha_tag": ""
}
Requires the CALL_ALERT message type added to trunk-recorder core:
TrunkRecorder/trunk-recorder#1126
Verified on a live P25 system — call_alert events fire correctly and
are received by downstream consumers (tr-engine).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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⚠️ DEPENDS ON TWO UPSTREAM PRs — DO NOT MERGE UNTIL BOTH ARE IN: 1. TrunkRecorder/trunk-recorder#1126 — decodes TSBK 0x1F into CALL_ALERT message type and dispatches via plugin API 2. TrunkRecorder/tr-plugin-mqtt#8 — implements unit_call_alert() in mqtt_status plugin, publishes to tr/units/{sys}/call_alert Without those two PRs, trunk-recorder will never emit call_alert MQTT messages and this handler will never fire. --- Ingest (internal/ingest/): - router.go: routes tr/units/{sys}/call_alert → unit_event handler - messages.go: adds TargetUnit/TargetUnitAlphaTag fields to UnitEventData - handler_units.go: handles call_alert subtype — upserts both source and target units, stores target_unit in metadata_json, publishes SSE as unit_event:call_alert with target_unit/target_unit_alpha_tag fields - router_test.go, handler_units_test.go: full test coverage for routing, payload parsing, and round-trip API (openapi.yaml): - Adds call_alert to EventType enum - Documents target_unit/target_unit_alpha_tag SSE payload fields Web UI: - events.html: red bold CALL ALERT badge, Unit A → Unit B detail, dedicated filter checkbox - index.html (Event Horizon): call alert row in rate meter (red), red streak in background canvas - omnitrunker.html: red CALL ALERT badge, target unit in TG columns, Call Alert filter option - omnitrunker-classic.html: same as omnitrunker - irc-radio-live.html: 🚨 CALL ALERT: UnitA → UnitB posted to *status (no talkgroup affiliation, so it goes to the system status channel) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Adds
unit_call_alert()to the mqtt_status plugin to publish P25 Call Alert events (TSBK opcode 0x1F) to MQTT.Call Alerts are directed unit-to-unit pages — one radio paging another with no audio. Previously these were silently discarded.
Topic
topic_unit/<shortname>/call_alertPayload
{ "sys_num": 1, "sys_name": "pscsite4", "unit": 4810011, "unit_alpha_tag": "", "target_unit": 4811289, "target_unit_alpha_tag": "" }Depends on
Requires
CALL_ALERTmessage type andunit_call_alertplugin API added to trunk-recorder core:Verified
Tested on a live P25 system. Call Alert events decode correctly, publish to MQTT, and are received by downstream consumers.
🤖 Generated with Claude Code