feat: no-answer retry, agent status machine, escalation events/timeline (ТЗ §13-15,22,25-27,37, AC-08,16-19)

Phase 2 of the L1->L2 routing engine (Phase 1: MR!4).

- ami_loop() now also captures native AMI DialEnd/Hangup frames (not
  only UserEvent), needed to detect that an escalated agent did not
  answer. No dialplan change required - Redirect already routes the
  client channel into an existing Dial()-based transfer context, so
  Asterisk emits these events on its own; the listener just wasn't
  reading them before.
- retry_escalation_no_answer(): on NOANSWER/BUSY/CANCEL/CHANUNAVAIL/
  CONGESTION, releases the non-answering agent, excludes it, and
  reserves+redirects to the next available agent via the routing
  engine's existing exclude_agent_ids support. Exhausted pool marks
  the escalation failed and leaves the call with the AI instead of
  dropping the client (ТЗ §32).
- Agent status now actually moves through
  RESERVED -> RINGING -> TALKING -> AFTER_CALL_WORK -> AVAILABLE
  instead of staying stuck on RESERVED for the whole call; a new
  acw_sweep_loop background thread (same pattern as the existing
  failed_retry_loop) times out AFTER_CALL_WORK back to AVAILABLE.
- escalations gains attempt_count/real_agent_id/attempted_agent_ids_json
  (migration 0033); fixes a latent bug where assigned_agent_id stored
  the SIP extension instead of the real agent_id despite routing-service
  already returning it in RoutingAgentReserveOut.
- Every transition now records an interaction timeline entry and
  publishes the ТЗ §25 event catalog (AgentReserved/AgentRinging/
  AgentNoAnswer/AgentConnected/TransferCompleted/TransferFailed)
  through the existing emit_voice_event/EventOutboxRow idempotent path.

Not in this MR (see plan): SLA config, Callback, L3 (needs real
technical agents from the business), metrics.

contracts/events/agent.connected.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "AgentConnected",
+  "type": "object",
+  "required": ["event", "call_id", "escalation_id", "agent_id", "created_at"],
+  "properties": {
+    "event": { "const": "AgentConnected" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": "string" },
+    "agent_id": { "type": "string" },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

contracts/events/agent.no_answer.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "AgentNoAnswer",
+  "type": "object",
+  "required": ["event", "call_id", "escalation_id", "agent_id", "dial_outcome", "created_at"],
+  "properties": {
+    "event": { "const": "AgentNoAnswer" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": "string" },
+    "agent_id": { "type": ["string", "null"] },
+    "dial_outcome": { "type": "string" },
+    "attempt_count": { "type": "integer" },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

contracts/events/agent.reserved.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "AgentReserved",
+  "type": "object",
+  "required": ["event", "call_id", "escalation_id", "agent_id", "created_at"],
+  "properties": {
+    "event": { "const": "AgentReserved" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": "string" },
+    "agent_id": { "type": "string" },
+    "tenant_id": { "type": ["string", "null"] },
+    "from_level": { "type": "string" },
+    "to_level": { "type": "string" },
+    "reason_code": { "type": "string" },
+    "attempt_count": { "type": "integer" },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

contracts/events/agent.ringing.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "AgentRinging",
+  "type": "object",
+  "required": ["event", "call_id", "escalation_id", "agent_id", "created_at"],
+  "properties": {
+    "event": { "const": "AgentRinging" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": "string" },
+    "agent_id": { "type": "string" },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

contracts/events/transfer.completed.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "TransferCompleted",
+  "type": "object",
+  "required": ["event", "call_id", "escalation_id", "agent_id", "created_at"],
+  "properties": {
+    "event": { "const": "TransferCompleted" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": "string" },
+    "agent_id": { "type": "string" },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

contracts/events/transfer.failed.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "TransferFailed",
+  "type": "object",
+  "required": ["event", "call_id", "created_at"],
+  "properties": {
+    "event": { "const": "TransferFailed" },
+    "call_id": { "type": "string" },
+    "escalation_id": { "type": ["string", "null"] },
+    "agent_id": { "type": ["string", "null"] },
+    "reason": { "type": ["string", "null"] },
+    "error": { "type": ["string", "null"] },
+    "created_at": { "type": "string", "format": "date-time" }
+  }
+}

migrations/sql/0033_escalation_retry_and_agent_state_postgres.sql

@@ -0,0 +1,4 @@
+ALTER TABLE escalations ADD COLUMN IF NOT EXISTS attempt_count INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE escalations ADD COLUMN IF NOT EXISTS real_agent_id TEXT;
+ALTER TABLE escalations ADD COLUMN IF NOT EXISTS attempted_agent_ids_json TEXT NOT NULL DEFAULT '[]';
+CREATE INDEX IF NOT EXISTS ix_escalations_real_agent_id ON escalations(real_agent_id);

migrations/sql/0033_escalation_retry_and_agent_state_sqlite.sql

@@ -0,0 +1,4 @@
+ALTER TABLE escalations ADD COLUMN attempt_count INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE escalations ADD COLUMN real_agent_id TEXT;
+ALTER TABLE escalations ADD COLUMN attempted_agent_ids_json TEXT NOT NULL DEFAULT '[]';
+CREATE INDEX IF NOT EXISTS ix_escalations_real_agent_id ON escalations(real_agent_id);

services/asterisk_bridge_service/ami.py

@@ -412,13 +412,18 @@ def ami_loop(stop_event=None) -> None:
                     raise RuntimeError("AMI connection closed")
                 if not frame:
                     continue
-                if frame.get("Event") != "UserEvent":
+                event_name = frame.get("Event")
+                if event_name == "UserEvent":
+                    user_event = str(frame.get("UserEvent") or "").strip()
+                    if not user_event.startswith(bridge._ami_prefix()):
+                        continue
+                    bridge._STATE.set_last_event()
+                    bridge._record_ami_payload(frame)
+                elif event_name in {"DialEnd", "Hangup"}:
+                    bridge._STATE.set_last_event()
+                    bridge._record_ami_payload(frame, event_name=event_name)
+                else:
                     continue
-                user_event = str(frame.get("UserEvent") or "").strip()
-                if not user_event.startswith(bridge._ami_prefix()):
-                    continue
-                bridge._STATE.set_last_event()
-                bridge._record_ami_payload(frame)
         except Exception as exc:
             bridge._STATE.set_connected(False)
             bridge._STATE.set_error(str(exc))

services/asterisk_bridge_service/app.py

@@ -262,6 +262,7 @@ def _start_background_threads() -> None:
         extra_loops: list[tuple[str, Callable[..., Any]]] = []
         if _ivr_fastagi_enabled():
             extra_loops.append(("asterisk-ivr-fastagi-loop", _ivr_fastagi_loop))
+        extra_loops.append(("agent-acw-sweep-loop", _acw_sweep_loop))
         bridge_runtime.start_background_threads(
             ami_loop=_ami_loop,
             failed_retry_loop=_failed_retry_loop,
@@ -305,6 +306,9 @@ _update_voice_ai_call_state = bridge_voice_ai.update_call_ai_state
 _voice_ai_summary_for_call = bridge_voice_ai.voice_ai_summary_for_call
 _create_escalation = bridge_voice_ai.create_escalation
 _release_routing_agent = bridge_voice_ai.release_routing_agent
+_retry_escalation_no_answer = bridge_voice_ai.retry_escalation_no_answer
+_routing_release_by_agent_id = bridge_voice_ai.routing_release_by_agent_id
+_set_routing_agent_status = bridge_voice_ai.set_routing_agent_status
 
 _first_non_empty = bridge_ami.first_non_empty
 _extract_call_id = bridge_ami.extract_call_id
@@ -373,6 +377,8 @@ _process_audio_bridge_ended = bridge_processing.process_audio_bridge_ended
 _process_call_ended = bridge_processing.process_call_ended
 _process_operator_connected = bridge_processing.process_operator_connected
 _process_recording_ready = bridge_processing.process_recording_ready
+_process_agent_dial_outcome = bridge_processing.process_agent_dial_outcome
+_acw_sweep_loop = bridge_processing.acw_sweep_loop
 _process_bridge_row = bridge_processing.process_bridge_row
 _record_ami_payload = bridge_processing.record_ami_payload
 _retry_failed_events_once = bridge_processing.retry_failed_events_once

services/asterisk_bridge_service/bridge_processing.py

@@ -4,6 +4,7 @@ from datetime import datetime, timezone
 import hashlib
 import json
 import logging
+import os
 from pathlib import Path
 import threading
 from typing import Any
@@ -884,18 +885,34 @@ def process_call_ended(
     open_escalation = session.execute(
         select(EscalationRow).where(
             EscalationRow.call_id == row.call_id,
-            EscalationRow.status.in_(["requested", "ringing"]),
+            EscalationRow.status.in_(["requested", "ringing", "connected"]),
         )
     ).scalar_one_or_none()
+    was_talking = open_escalation is not None and open_escalation.status == "connected"
     if open_escalation is not None:
         open_escalation.status = "completed" if answered else "failed"
         open_escalation.completed_at = now
         if answered and not open_escalation.connected_at:
             open_escalation.connected_at = now
-    try:
-        bridge._release_routing_agent(row.call_id)
-    except Exception:
-        pass
+    if was_talking and open_escalation and open_escalation.real_agent_id:
+        try:
+            bridge._set_routing_agent_status(open_escalation.real_agent_id, "AFTER_CALL_WORK")
+        except Exception:
+            logger.warning("bridge.agent_acw_status_failed call_id=%s agent_id=%s", row.call_id, open_escalation.real_agent_id)
+    else:
+        try:
+            bridge._release_routing_agent(row.call_id)
+        except Exception:
+            pass
+    if open_escalation is not None:
+        try:
+            bridge._append_interaction_timeline(
+                interaction_id=link.interaction_id,
+                action="escalation.completed" if answered else "escalation.failed_client_disconnected",
+                metadata={"call_id": row.call_id, "escalation_id": open_escalation.escalation_id, "agent_id": open_escalation.real_agent_id},
+            )
+        except Exception:
+            pass
     try:
         bridge._notify_voice_ai_telephony_event(
             voice_session_id=link.voice_session_id,
@@ -969,6 +986,48 @@ def process_operator_connected(
     link.telephony_status = "connected"
     link.connected_at = now
     link.updated_at = now
+
+    open_escalation = session.execute(
+        select(EscalationRow).where(
+            EscalationRow.call_id == row.call_id,
+            EscalationRow.status == "ringing",
+        )
+    ).scalar_one_or_none()
+    if open_escalation is not None:
+        open_escalation.status = "connected"
+        open_escalation.connected_at = now
+        if open_escalation.real_agent_id:
+            try:
+                bridge._set_routing_agent_status(open_escalation.real_agent_id, "TALKING")
+            except Exception:
+                logger.warning("bridge.agent_talking_status_failed call_id=%s agent_id=%s", row.call_id, open_escalation.real_agent_id)
+        try:
+            bridge._append_interaction_timeline(
+                interaction_id=link.interaction_id,
+                action="escalation.agent_connected",
+                metadata={"call_id": row.call_id, "agent_id": open_escalation.real_agent_id, "escalation_id": open_escalation.escalation_id},
+            )
+        except Exception:
+            pass
+        try:
+            bridge._emit_voice_event(
+                event_type="AgentConnected",
+                call_id=row.call_id,
+                interaction_id=link.interaction_id,
+                payload={"escalation_id": open_escalation.escalation_id, "agent_id": open_escalation.real_agent_id},
+            )
+        except Exception:
+            pass
+        try:
+            bridge._emit_voice_event(
+                event_type="TransferCompleted",
+                call_id=row.call_id,
+                interaction_id=link.interaction_id,
+                payload={"escalation_id": open_escalation.escalation_id, "agent_id": open_escalation.real_agent_id},
+            )
+        except Exception:
+            pass
+
     _upsert_voice_reporting_fact(
         session,
         link,
@@ -1173,6 +1232,55 @@ def process_recording_ready(
             local_path.unlink(missing_ok=True)
 
 
+_NO_ANSWER_DIAL_STATUSES = {"NOANSWER", "BUSY", "CANCEL", "CHANUNAVAIL", "CONGESTION"}
+_NO_ANSWER_HANGUP_CAUSES = {"17", "18", "19", "21", "34", "38"}
+
+
+def process_agent_dial_outcome(session, row: AsteriskEventLogRow, payload: dict[str, Any]) -> None:
+    bridge = _bridge_app()
+    call_id = row.call_id
+    if not call_id:
+        bridge._mark_log_forwarded(session, row, interaction_id=None)
+        return
+
+    dial_status = str(payload.get("DialStatus") or "").strip().upper()
+    hangup_cause = str(payload.get("Cause") or "").strip()
+
+    is_no_answer_outcome = (
+        (row.ami_event_name == "DialEnd" and dial_status in _NO_ANSWER_DIAL_STATUSES)
+        or (row.ami_event_name == "Hangup" and hangup_cause in _NO_ANSWER_HANGUP_CAUSES)
+    )
+    if not is_no_answer_outcome:
+        bridge._mark_log_forwarded(session, row, interaction_id=None)
+        return
+
+    escalation = session.execute(
+        select(EscalationRow).where(
+            EscalationRow.call_id == call_id,
+            EscalationRow.status == "ringing",
+        )
+    ).scalar_one_or_none()
+    if escalation is None:
+        bridge._mark_log_forwarded(session, row, interaction_id=None)
+        return
+
+    dialed_channel = payload.get("DestChannel") if row.ami_event_name == "DialEnd" else payload.get("Channel")
+    dialed_extension = bridge._extract_extension_from_channel(dialed_channel)
+    if dialed_extension and escalation.assigned_agent_id and dialed_extension != escalation.assigned_agent_id:
+        bridge._mark_log_forwarded(session, row, interaction_id=None)
+        return
+
+    try:
+        bridge._retry_escalation_no_answer(
+            session,
+            call_id=call_id,
+            dial_outcome=dial_status or f"hangup_cause_{hangup_cause}",
+        )
+    except Exception:
+        logger.exception("bridge.agent_dial_outcome_retry_failed call_id=%s", call_id)
+    bridge._mark_log_forwarded(session, row, interaction_id=None)
+
+
 def process_bridge_row(session, row: AsteriskEventLogRow) -> AsteriskEventLogRow:
     bridge = _bridge_app()
     payload = json.loads(row.payload_json or "{}")
@@ -1209,6 +1317,8 @@ def process_bridge_row(session, row: AsteriskEventLogRow) -> AsteriskEventLogRow
         bridge._process_call_ended(session, row, payload)
     elif row.ami_event_name == f"{bridge._ami_prefix()}RecordingReady":
         bridge._process_recording_ready(session, row, payload)
+    elif row.ami_event_name in {"DialEnd", "Hangup"}:
+        bridge._process_agent_dial_outcome(session, row, payload)
     else:
         row.forward_status = "received"
         row.updated_at = utc_now_iso()
@@ -1216,9 +1326,9 @@ def process_bridge_row(session, row: AsteriskEventLogRow) -> AsteriskEventLogRow
     return row
 
 
-def record_ami_payload(payload: dict[str, Any]) -> None:
+def record_ami_payload(payload: dict[str, Any], *, event_name: str | None = None) -> None:
     bridge = _bridge_app()
-    event_name = str(payload.get("UserEvent") or "").strip()
+    event_name = str(event_name or payload.get("UserEvent") or "").strip()
     call_id = bridge._extract_call_id(payload)
     linked_id = bridge._extract_linked_id(payload, call_id)
     if not event_name or not call_id:
@@ -1262,6 +1372,42 @@ def retry_failed_events_once() -> None:
         bridge._process_claimed_bridge_event(bridge_event_id)
 
 
+def acw_duration_seconds() -> int:
+    raw = str(os.environ.get("ACW_DURATION_SECONDS", "30")).strip()
+    try:
+        return max(int(raw), 1)
+    except ValueError:
+        return 30
+
+
+def acw_sweep_interval_seconds() -> float:
+    return max(min(float(acw_duration_seconds()) / 2, 15.0), 5.0)
+
+
+def acw_sweep_once() -> None:
+    from services.routing_service import engine as routing_engine
+
+    session = get_session()
+    try:
+        swept = routing_engine.sweep_after_call_work(session, older_than_seconds=acw_duration_seconds())
+        for agent in swept:
+            logger.warning("bridge.agent_acw_swept agent_id=%s", agent.agent_id)
+    finally:
+        session.close()
+
+
+def acw_sweep_loop(stop_event: threading.Event | None = None) -> None:
+    bridge = _bridge_app()
+    active_stop_event = stop_event or bridge._background_stop_event()
+    while not active_stop_event.is_set():
+        try:
+            acw_sweep_once()
+        except Exception:
+            logger.exception("bridge.acw_sweep_failed")
+        if active_stop_event.wait(acw_sweep_interval_seconds()):
+            break
+
+
 def failed_retry_loop(stop_event: threading.Event | None = None) -> None:
     bridge = _bridge_app()
     active_stop_event = stop_event or bridge._background_stop_event()

services/asterisk_bridge_service/voice_ai.py

@@ -63,6 +63,57 @@ def append_interaction_timeline(
     )
 
 
+def _append_escalation_timeline(
+    escalation: EscalationRow,
+    link: AsteriskCallLinkRow,
+    *,
+    action: str,
+    extra: dict[str, Any] | None = None,
+) -> None:
+    try:
+        append_interaction_timeline(
+            interaction_id=link.interaction_id,
+            action=action,
+            metadata={
+                "call_id": escalation.call_id,
+                "escalation_id": escalation.escalation_id,
+                "from_level": escalation.from_level,
+                "to_level": escalation.to_level,
+                "attempt_count": escalation.attempt_count,
+                **(extra or {}),
+            },
+        )
+    except Exception:
+        pass
+
+
+def _emit_escalation_event(
+    *,
+    event_type: str,
+    escalation: EscalationRow,
+    link: AsteriskCallLinkRow,
+    extra: dict[str, Any] | None = None,
+) -> None:
+    bridge = _bridge_app()
+    try:
+        bridge._emit_voice_event(
+            event_type=event_type,
+            call_id=escalation.call_id,
+            interaction_id=link.interaction_id,
+            payload={
+                "escalation_id": escalation.escalation_id,
+                "tenant_id": escalation.tenant_id,
+                "from_level": escalation.from_level,
+                "to_level": escalation.to_level,
+                "reason_code": escalation.reason_code,
+                "attempt_count": escalation.attempt_count,
+                **(extra or {}),
+            },
+        )
+    except Exception:
+        LOGGER.warning("bridge.escalation_event_failed event_type=%s call_id=%s", event_type, escalation.call_id)
+
+
 def start_voice_ai_session(
     *,
     call_id: str,
@@ -188,7 +239,8 @@ def _reserve_routing_agent(
     level: str,
     tenant_id: str | None,
     required_skills: list[str] | None = None,
-) -> str | None:
+    exclude_agent_ids: list[str] | None = None,
+) -> dict[str, Any] | None:
     bridge = _bridge_app()
     try:
         response = bridge._post_json(
@@ -198,7 +250,7 @@ def _reserve_routing_agent(
                 "level": level,
                 "tenant_id": tenant_id,
                 "required_skills": required_skills or [],
-                "exclude_agent_ids": [],
+                "exclude_agent_ids": exclude_agent_ids or [],
             },
             timeout_seconds=bridge._callcontrol_side_effect_timeout_seconds(),
             max_attempts=1,
@@ -212,8 +264,43 @@ def _reserve_routing_agent(
             tenant_id,
         )
         return None
+    agent_id = str((response or {}).get("agent_id") or "").strip()
     extension = str((response or {}).get("extension") or "").strip()
-    return extension or None
+    if not agent_id or not extension:
+        return None
+    return {
+        "agent_id": agent_id,
+        "extension": extension,
+        "endpoint": (response or {}).get("endpoint"),
+        "display_name": (response or {}).get("display_name"),
+    }
+
+
+def set_routing_agent_status(agent_id: str, status: str) -> None:
+    bridge = _bridge_app()
+    try:
+        bridge._patch_json(
+            f"{bridge._routing_service_url()}/internal/routing/agents/{agent_id}/status",
+            {"status": status},
+            timeout_seconds=bridge._callcontrol_side_effect_timeout_seconds(),
+            max_attempts=1,
+            retry_backoff_seconds=0.0,
+        )
+    except Exception:
+        LOGGER.warning("bridge.routing_set_status_failed agent_id=%s status=%s", agent_id, status)
+
+
+def _redirect_channel_to_agent(*, channel: str, extension: str) -> None:
+    bridge = _bridge_app()
+    bridge._ami_action(
+        "Redirect",
+        {
+            "Channel": channel,
+            "Context": bridge._transfer_context(),
+            "Exten": extension,
+            "Priority": 1,
+        },
+    )
 
 
 def _resolve_handoff_extension(
@@ -233,14 +320,14 @@ def _resolve_handoff_extension(
     level = target_level or bridge._routing_level_for_queue_code(queue_code)
     if level and call_id:
         resolved_tenant_id = tenant_id if tenant_id is not None else bridge._routing_tenant_for_queue_code(queue_code)
-        reserved_extension = _reserve_routing_agent(
+        reserved_agent = _reserve_routing_agent(
             call_id=call_id,
             level=level,
             tenant_id=resolved_tenant_id,
             required_skills=required_skills,
         )
-        if reserved_extension:
-            return queue_code, reserved_extension, level, resolved_tenant_id
+        if reserved_agent:
+            return queue_code, reserved_agent["extension"], level, resolved_tenant_id
         raise HTTPException(status_code=409, detail=f"No available {level} agent right now")
 
     extension = bridge._transfer_target_map().get(queue_code)
@@ -666,6 +753,7 @@ def _escalation_to_out(row: EscalationRow) -> EscalationOut:
         summary=row.summary,
         status=row.status,
         assigned_agent_id=row.assigned_agent_id,
+        attempt_count=row.attempt_count or 0,
         requested_at=row.requested_at,
         connected_at=row.connected_at,
         completed_at=row.completed_at,
@@ -709,28 +797,32 @@ def create_escalation(call_id: str, body: EscalationRequestIn, actor: dict) -> E
         session.flush()
 
         channel = _resolve_handoff_channel(session, link)
-        reserved_extension = _reserve_routing_agent(
+        agent = _reserve_routing_agent(
             call_id=call_id,
             level=body.target_level,
             tenant_id=link.tenant_id,
             required_skills=body.required_skills,
         )
-        if not reserved_extension:
+        if not agent:
             escalation.status = "failed"
             escalation.completed_at = now
             session.commit()
+            _emit_escalation_event(
+                event_type="TransferFailed",
+                escalation=escalation,
+                link=link,
+                extra={"reason": "no_available_agent"},
+            )
             raise HTTPException(status_code=409, detail=f"No available {body.target_level} agent right now")
 
+        escalation.real_agent_id = agent["agent_id"]
+        escalation.attempted_agent_ids_json = json.dumps([agent["agent_id"]], ensure_ascii=False)
+        session.flush()
+        _append_escalation_timeline(escalation, link, action="escalation.agent_reserved", extra={"agent_id": agent["agent_id"]})
+        _emit_escalation_event(event_type="AgentReserved", escalation=escalation, link=link, extra={"agent_id": agent["agent_id"]})
+
         try:
-            bridge._ami_action(
-                "Redirect",
-                {
-                    "Channel": channel,
-                    "Context": bridge._transfer_context(),
-                    "Exten": reserved_extension,
-                    "Priority": 1,
-                },
-            )
+            _redirect_channel_to_agent(channel=channel, extension=agent["extension"])
         except Exception as exc:
             try:
                 bridge._release_routing_agent(call_id)
@@ -739,10 +831,13 @@ def create_escalation(call_id: str, body: EscalationRequestIn, actor: dict) -> E
             escalation.status = "failed"
             escalation.completed_at = utc_now_iso()
             session.commit()
+            _append_escalation_timeline(escalation, link, action="escalation.transfer_failed", extra={"agent_id": agent["agent_id"], "error": str(exc)})
+            _emit_escalation_event(event_type="TransferFailed", escalation=escalation, link=link, extra={"agent_id": agent["agent_id"], "error": str(exc)})
             raise HTTPException(status_code=502, detail=f"Failed to redirect call to agent: {exc}") from exc
 
+        set_routing_agent_status(agent["agent_id"], "RINGING")
         escalation.status = "ringing"
-        escalation.assigned_agent_id = reserved_extension
+        escalation.assigned_agent_id = agent["extension"]
         link.current_level = body.target_level
         link.required_skills_json = json.dumps(body.required_skills, ensure_ascii=False)
         link.priority = body.priority
@@ -751,11 +846,114 @@ def create_escalation(call_id: str, body: EscalationRequestIn, actor: dict) -> E
         link.operator_extension = None
         link.updated_at = now
         session.commit()
+        _append_escalation_timeline(escalation, link, action="escalation.agent_ringing", extra={"agent_id": agent["agent_id"]})
+        _emit_escalation_event(event_type="AgentRinging", escalation=escalation, link=link, extra={"agent_id": agent["agent_id"]})
         return _escalation_to_out(escalation)
     finally:
         session.close()
 
 
+def retry_escalation_no_answer(session, *, call_id: str, dial_outcome: str) -> None:
+    """AC-08 / ТЗ §14: агент не ответил — освободить его и попробовать следующего.
+
+    Вызывается из bridge_processing при нативном AMI DialEnd/Hangup с исходом
+    NOANSWER/BUSY/CANCEL/CHANUNAVAIL/CONGESTION на канале агента, зарезервированного
+    под активную (status='ringing') эскалацию этого call_id.
+    """
+    bridge = _bridge_app()
+    escalation = session.execute(
+        select(EscalationRow).where(
+            EscalationRow.call_id == call_id,
+            EscalationRow.status == "ringing",
+        )
+    ).scalar_one_or_none()
+    if escalation is None:
+        return
+
+    link = bridge._find_call_link(session, call_id)
+    if link is None:
+        return
+
+    now = utc_now_iso()
+    no_answer_agent_id = escalation.real_agent_id
+    if no_answer_agent_id:
+        try:
+            routing_release_by_agent_id(no_answer_agent_id)
+        except Exception:
+            LOGGER.warning("bridge.escalation_retry_release_failed call_id=%s agent_id=%s", call_id, no_answer_agent_id)
+
+    escalation.attempt_count = (escalation.attempt_count or 0) + 1
+    session.flush()
+    _append_escalation_timeline(
+        escalation,
+        link,
+        action="escalation.agent_no_answer",
+        extra={"agent_id": no_answer_agent_id, "dial_outcome": dial_outcome},
+    )
+    _emit_escalation_event(
+        event_type="AgentNoAnswer",
+        escalation=escalation,
+        link=link,
+        extra={"agent_id": no_answer_agent_id, "dial_outcome": dial_outcome},
+    )
+
+    attempted_ids = json.loads(escalation.attempted_agent_ids_json or "[]")
+    channel = _resolve_handoff_channel(session, link)
+    required_skills = json.loads(escalation.required_skills_json or "[]")
+    next_agent = _reserve_routing_agent(
+        call_id=call_id,
+        level=escalation.to_level,
+        tenant_id=escalation.tenant_id,
+        required_skills=required_skills,
+        exclude_agent_ids=attempted_ids,
+    )
+    if not next_agent:
+        escalation.status = "failed"
+        escalation.completed_at = now
+        session.commit()
+        _append_escalation_timeline(escalation, link, action="escalation.failed_no_agents")
+        _emit_escalation_event(event_type="TransferFailed", escalation=escalation, link=link, extra={"reason": "no_more_agents"})
+        LOGGER.warning("bridge.escalation_retry_exhausted call_id=%s attempts=%s", call_id, escalation.attempt_count)
+        return
+
+    escalation.real_agent_id = next_agent["agent_id"]
+    escalation.attempted_agent_ids_json = json.dumps(attempted_ids + [next_agent["agent_id"]], ensure_ascii=False)
+    session.flush()
+    _append_escalation_timeline(escalation, link, action="escalation.agent_reserved", extra={"agent_id": next_agent["agent_id"]})
+    _emit_escalation_event(event_type="AgentReserved", escalation=escalation, link=link, extra={"agent_id": next_agent["agent_id"]})
+
+    try:
+        _redirect_channel_to_agent(channel=channel, extension=next_agent["extension"])
+    except Exception as exc:
+        try:
+            routing_release_by_agent_id(next_agent["agent_id"])
+        except Exception:
+            pass
+        escalation.status = "failed"
+        escalation.completed_at = utc_now_iso()
+        session.commit()
+        _append_escalation_timeline(escalation, link, action="escalation.transfer_failed", extra={"agent_id": next_agent["agent_id"], "error": str(exc)})
+        _emit_escalation_event(event_type="TransferFailed", escalation=escalation, link=link, extra={"agent_id": next_agent["agent_id"], "error": str(exc)})
+        return
+
+    set_routing_agent_status(next_agent["agent_id"], "RINGING")
+    escalation.assigned_agent_id = next_agent["extension"]
+    session.commit()
+    _append_escalation_timeline(escalation, link, action="escalation.agent_ringing", extra={"agent_id": next_agent["agent_id"]})
+    _emit_escalation_event(event_type="AgentRinging", escalation=escalation, link=link, extra={"agent_id": next_agent["agent_id"]})
+
+
+def routing_release_by_agent_id(agent_id: str, *, next_status: str = "AVAILABLE") -> None:
+    bridge = _bridge_app()
+    bridge._post_json(
+        f"{bridge._routing_service_url()}/internal/routing/release-agent",
+        {"agent_id": agent_id, "next_status": next_status},
+        timeout_seconds=bridge._callcontrol_side_effect_timeout_seconds(),
+        max_attempts=1,
+        retry_backoff_seconds=0.0,
+    )
+
+
 def update_call_ai_state(call_id: str, body: VoiceAICallStateUpdateIn, actor: dict) -> VoiceLiveCallOut:
     bridge = _bridge_app()
     assert_trusted_voice_runtime_actor(actor)

services/routing_service/app.py

@@ -18,6 +18,7 @@ from services.shared.models import (
     QueueOut,
     RoutingAgentReserveIn,
     RoutingAgentReserveOut,
+    RoutingAgentStatusIn,
 )
 from services.shared.security import require_roles
 from services.shared.sql_init import init_sql_schema
@@ -343,6 +344,7 @@ def _escalation_to_out(row: EscalationRow) -> EscalationOut:
         summary=row.summary,
         status=row.status,
         assigned_agent_id=row.assigned_agent_id,
+        attempt_count=row.attempt_count or 0,
         requested_at=row.requested_at,
         connected_at=row.connected_at,
         completed_at=row.completed_at,
@@ -399,11 +401,32 @@ def release_agent_endpoint(
     _: dict = Depends(require_roles(Role.ADMIN)),
 ) -> dict:
     call_id = str(payload.get("call_id") or "").strip()
-    if not call_id:
-        raise HTTPException(status_code=400, detail="call_id is required")
+    agent_id = str(payload.get("agent_id") or "").strip()
+    next_status = str(payload.get("next_status") or "AVAILABLE").strip() or "AVAILABLE"
+    if not call_id and not agent_id:
+        raise HTTPException(status_code=400, detail="call_id or agent_id is required")
     session = get_session()
     try:
-        agent = routing_engine.release_agent_by_call_id(session, call_id=call_id)
-        return {"call_id": call_id, "released_agent_id": agent.agent_id if agent else None}
+        if agent_id:
+            agent = routing_engine.release_agent_by_id(session, agent_id=agent_id, next_status=next_status)
+        else:
+            agent = routing_engine.release_agent_by_call_id(session, call_id=call_id)
+        return {"call_id": call_id or None, "released_agent_id": agent.agent_id if agent else None}
+    finally:
+        session.close()
+
+
+@app.patch("/internal/routing/agents/{agent_id}/status")
+def set_agent_status_endpoint(
+    agent_id: str,
+    payload: RoutingAgentStatusIn,
+    _: dict = Depends(require_roles(Role.ADMIN)),
+) -> dict:
+    session = get_session()
+    try:
+        agent = routing_engine.set_agent_status(session, agent_id=agent_id, status=payload.status)
+        if agent is None:
+            raise HTTPException(status_code=404, detail="Agent not found")
+        return {"agent_id": agent.agent_id, "status": agent.status}
     finally:
         session.close()

services/routing_service/engine.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+from datetime import datetime
 
 from sqlalchemy import select, text
 
@@ -117,6 +118,41 @@ def release_agent_by_call_id(session, *, call_id: str) -> AgentRow | None:
     return agent
 
 
+def set_agent_status(session, *, agent_id: str, status: str) -> AgentRow | None:
+    agent = session.execute(
+        select(AgentRow).where(AgentRow.agent_id == agent_id)
+    ).scalar_one_or_none()
+    if agent is None:
+        return None
+    agent.status = status
+    agent.updated_at = utc_now_iso()
+    session.commit()
+    return agent
+
+
+def sweep_after_call_work(session, *, older_than_seconds: int) -> list[AgentRow]:
+    cutoff = utc_now_iso()
+    rows = session.execute(
+        select(AgentRow).where(AgentRow.status == "AFTER_CALL_WORK")
+    ).scalars().all()
+    swept: list[AgentRow] = []
+    for agent in rows:
+        try:
+            age_seconds = (
+                datetime.fromisoformat(cutoff) - datetime.fromisoformat(str(agent.updated_at))
+            ).total_seconds()
+        except (TypeError, ValueError):
+            continue
+        if age_seconds >= older_than_seconds:
+            agent.status = "AVAILABLE"
+            agent.current_call_id = None
+            agent.updated_at = cutoff
+            swept.append(agent)
+    if swept:
+        session.commit()
+    return swept
+
+
 def release_agent_by_id(session, *, agent_id: str, next_status: str = "AVAILABLE") -> AgentRow | None:
     agent = session.execute(
         select(AgentRow).where(AgentRow.agent_id == agent_id)

services/shared/models.py

@@ -1311,11 +1311,16 @@ class EscalationOut(BaseModel):
     summary: str | None = None
     status: str
     assigned_agent_id: str | None = None
+    attempt_count: int = 0
     requested_at: str
     connected_at: str | None = None
     completed_at: str | None = None
 
 
+class RoutingAgentStatusIn(BaseModel):
+    status: str = Field(min_length=1)
+
+
 class RoutingAgentReserveIn(BaseModel):
     call_id: str = Field(min_length=1)
     level: AgentLevel

services/shared/sql_models.py

@@ -846,6 +846,9 @@ class EscalationRow(Base):
     summary: Mapped[str | None] = mapped_column(Text, nullable=True)
     status: Mapped[str] = mapped_column(String(32), index=True, default="requested")
     assigned_agent_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
+    real_agent_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
+    attempted_agent_ids_json: Mapped[str] = mapped_column(Text, default="[]")
+    attempt_count: Mapped[int] = mapped_column(Integer, default=0)
     requested_at: Mapped[str] = mapped_column(String(64), index=True)
     connected_at: Mapped[str | None] = mapped_column(String(64), nullable=True)
     completed_at: Mapped[str | None] = mapped_column(String(64), nullable=True)

tests/test_asterisk_bridge_service.py

@@ -2195,6 +2195,7 @@ def test_disabled_bridge_startup_does_not_require_singleton_guard(monkeypatch):
     monkeypatch.delenv("ASTERISK_BRIDGE_ENABLED", raising=False)
     monkeypatch.setattr(bridge_module, "_ami_loop", _wait_until_stopped)
     monkeypatch.setattr(bridge_module, "_failed_retry_loop", _wait_until_stopped)
+    monkeypatch.setattr(bridge_module, "_acw_sweep_loop", _wait_until_stopped)
     monkeypatch.setattr(
         bridge_module,
         "_try_acquire_bridge_singleton_guard",
@@ -2202,7 +2203,7 @@ def test_disabled_bridge_startup_does_not_require_singleton_guard(monkeypatch):
     )
 
     bridge_module._startup()
-    assert len(bridge_module._background_threads_alive()) == 2
+    assert len(bridge_module._background_threads_alive()) == 3
 
 
 def test_shutdown_releases_singleton_guard(monkeypatch):

tests/test_escalation_retry.py

@@ -0,0 +1,190 @@
+import json
+
+import pytest
+
+import services.asterisk_bridge_service.voice_ai as voice_ai
+from services.routing_service import engine as routing_engine
+from services.shared.core import new_id, utc_now_iso
+from services.shared.db import get_session
+from services.shared.sql_init import init_sql_schema
+from services.shared.sql_models import AgentRow, AsteriskCallLinkRow, EscalationRow
+
+
+def _make_agent(session, *, extension: str, status: str = "AVAILABLE"):
+    now = utc_now_iso()
+    row = AgentRow(
+        agent_id=new_id("agt"),
+        tenant_ids_json="[]",
+        extension=extension,
+        endpoint=None,
+        display_name=f"Agent {extension}",
+        level="L2",
+        skills_json="[]",
+        status=status,
+        max_concurrent_calls=1,
+        enabled=True,
+        created_at=now,
+        updated_at=now,
+    )
+    session.add(row)
+    session.commit()
+    session.refresh(row)
+    return row
+
+
+def _make_call_link(session, *, call_id: str):
+    now = utc_now_iso()
+    link = AsteriskCallLinkRow(
+        call_id=call_id,
+        linked_id=call_id,
+        queue_code="voice_lab_ai",
+        queue_id="que_test",
+        interaction_id="int_test",
+        status="active",
+        telephony_status="ringing",
+        channel_name=f"PJSIP/tele2-kazgaz-{call_id}",
+        current_level="L2",
+        started_at=now,
+        updated_at=now,
+    )
+    session.add(link)
+    session.commit()
+    session.refresh(link)
+    return link
+
+
+def _make_ringing_escalation(session, *, call_id: str, agent: AgentRow):
+    now = utc_now_iso()
+    escalation = EscalationRow(
+        escalation_id=new_id("esc"),
+        call_id=call_id,
+        tenant_id=None,
+        from_level="L1",
+        to_level="L2",
+        reason_code="AI_UNABLE_TO_RESOLVE",
+        required_skills_json="[]",
+        priority=3,
+        status="ringing",
+        assigned_agent_id=agent.extension,
+        real_agent_id=agent.agent_id,
+        attempted_agent_ids_json=json.dumps([agent.agent_id]),
+        requested_at=now,
+    )
+    session.add(escalation)
+    session.commit()
+    session.refresh(escalation)
+    return escalation
+
+
+def _patch_routing_over_http(monkeypatch, session):
+    """Make voice_ai's HTTP-facing routing helpers operate on the same test session directly."""
+
+    def fake_reserve(*, call_id, level, tenant_id, required_skills=None, exclude_agent_ids=None):
+        agent = routing_engine.reserve_agent(
+            session,
+            call_id=call_id,
+            level=level,
+            tenant_id=tenant_id,
+            required_skills=required_skills,
+            exclude_agent_ids=exclude_agent_ids,
+        )
+        if agent is None:
+            return None
+        return {
+            "agent_id": agent.agent_id,
+            "extension": agent.extension,
+            "endpoint": agent.endpoint,
+            "display_name": agent.display_name,
+        }
+
+    def fake_release_by_agent_id(agent_id, *, next_status="AVAILABLE"):
+        routing_engine.release_agent_by_id(session, agent_id=agent_id, next_status=next_status)
+
+    def fake_set_status(agent_id, status):
+        routing_engine.set_agent_status(session, agent_id=agent_id, status=status)
+
+    monkeypatch.setattr(voice_ai, "_reserve_routing_agent", fake_reserve)
+    monkeypatch.setattr(voice_ai, "routing_release_by_agent_id", fake_release_by_agent_id)
+    monkeypatch.setattr(voice_ai, "set_routing_agent_status", fake_set_status)
+    monkeypatch.setattr(voice_ai, "_append_escalation_timeline", lambda *a, **k: None)
+    monkeypatch.setattr(voice_ai, "_emit_escalation_event", lambda *a, **k: None)
+    monkeypatch.setattr(voice_ai, "_resolve_handoff_channel", lambda session, link: link.channel_name)
+
+
+def test_retry_escalation_no_answer_moves_to_next_available_agent(monkeypatch):
+    init_sql_schema()
+    redirected_to: list[str] = []
+
+    session = get_session()
+    try:
+        _patch_routing_over_http(monkeypatch, session)
+        monkeypatch.setattr(
+            voice_ai,
+            "_redirect_channel_to_agent",
+            lambda *, channel, extension: redirected_to.append(extension),
+        )
+        agent_a = _make_agent(session, extension="2001")
+        agent_b = _make_agent(session, extension="2002")
+        routing_engine.reserve_agent(session, call_id="call-retry-1", level="L2", tenant_id=None, required_skills=[])
+        link = _make_call_link(session, call_id="call-retry-1")
+        escalation = _make_ringing_escalation(session, call_id="call-retry-1", agent=agent_a)
+
+        voice_ai.retry_escalation_no_answer(session, call_id="call-retry-1", dial_outcome="NOANSWER")
+
+        session.refresh(escalation)
+        session.refresh(agent_a)
+        session.refresh(agent_b)
+
+        assert escalation.attempt_count == 1
+        assert escalation.status == "ringing"
+        assert escalation.real_agent_id == agent_b.agent_id
+        assert escalation.assigned_agent_id == agent_b.extension
+        assert json.loads(escalation.attempted_agent_ids_json) == [agent_a.agent_id, agent_b.agent_id]
+
+        assert agent_a.status == "AVAILABLE"
+        assert agent_a.current_call_id is None
+        assert agent_b.status == "RINGING"
+        assert agent_b.current_call_id == "call-retry-1"
+
+        assert redirected_to == [agent_b.extension]
+    finally:
+        session.close()
+
+
+def test_retry_escalation_no_answer_exhausts_pool_marks_failed(monkeypatch):
+    init_sql_schema()
+
+    session = get_session()
+    try:
+        _patch_routing_over_http(monkeypatch, session)
+        monkeypatch.setattr(voice_ai, "_redirect_channel_to_agent", lambda **kwargs: None)
+        agent_a = _make_agent(session, extension="3001")
+        routing_engine.reserve_agent(session, call_id="call-retry-2", level="L2", tenant_id=None, required_skills=[])
+        link = _make_call_link(session, call_id="call-retry-2")
+        escalation = _make_ringing_escalation(session, call_id="call-retry-2", agent=agent_a)
+
+        voice_ai.retry_escalation_no_answer(session, call_id="call-retry-2", dial_outcome="NOANSWER")
+
+        session.refresh(escalation)
+        session.refresh(agent_a)
+
+        assert escalation.attempt_count == 1
+        assert escalation.status == "failed"
+        assert agent_a.status == "AVAILABLE"
+    finally:
+        session.close()
+
+
+def test_retry_escalation_no_answer_ignores_calls_without_ringing_escalation(monkeypatch):
+    init_sql_schema()
+    called = []
+
+    session = get_session()
+    try:
+        _patch_routing_over_http(monkeypatch, session)
+        monkeypatch.setattr(voice_ai, "_redirect_channel_to_agent", lambda **kwargs: called.append(kwargs))
+        _make_call_link(session, call_id="call-no-escalation")
+        voice_ai.retry_escalation_no_answer(session, call_id="call-no-escalation", dial_outcome="NOANSWER")
+        assert called == []
+    finally:
+        session.close()

tests/test_routing_engine.py

@@ -1,3 +1,4 @@
+from datetime import datetime, timedelta, timezone
 import json
 
 from sqlalchemy import select
@@ -134,3 +135,50 @@ def test_reserve_agent_excludes_disabled_and_excluded_ids():
         assert reserved.agent_id != excluded.agent_id
     finally:
         session.close()
+
+
+def test_set_agent_status_transitions_ringing_to_talking():
+    init_sql_schema()
+    session = get_session()
+    try:
+        agent = _make_agent(session, level="L2")
+        routing_engine.reserve_agent(session, call_id="call-status", level="L2", tenant_id=None, required_skills=[])
+
+        ringing = routing_engine.set_agent_status(session, agent_id=agent.agent_id, status="RINGING")
+        assert ringing is not None
+        assert ringing.status == "RINGING"
+
+        talking = routing_engine.set_agent_status(session, agent_id=agent.agent_id, status="TALKING")
+        assert talking.status == "TALKING"
+
+        missing = routing_engine.set_agent_status(session, agent_id="unknown-agent", status="AVAILABLE")
+        assert missing is None
+    finally:
+        session.close()
+
+
+def test_sweep_after_call_work_releases_only_expired_agents():
+    init_sql_schema()
+    session = get_session()
+    try:
+        stale = _make_agent(session, level="L2", status="AFTER_CALL_WORK")
+        fresh = _make_agent(session, level="L2", status="AFTER_CALL_WORK")
+
+        stale_ts = (datetime.now(timezone.utc) - timedelta(seconds=120)).replace(microsecond=0).isoformat()
+        stale.updated_at = stale_ts
+        stale.current_call_id = "call-stale"
+        session.commit()
+
+        swept = routing_engine.sweep_after_call_work(session, older_than_seconds=30)
+        swept_ids = {a.agent_id for a in swept}
+
+        assert stale.agent_id in swept_ids
+        assert fresh.agent_id not in swept_ids
+
+        session.refresh(stale)
+        session.refresh(fresh)
+        assert stale.status == "AVAILABLE"
+        assert stale.current_call_id is None
+        assert fresh.status == "AFTER_CALL_WORK"
+    finally:
+        session.close()