Three issues caused the port to remain bound after partial failures:
1. VoiceCallWebhookServer.start() had no idempotency guard — calling it
while the server was already listening would create a second server on
the same port.
2. createVoiceCallRuntime() did not clean up the webhook server if a step
after webhookServer.start() failed (e.g. manager.initialize). The
server kept the port bound while the runtime promise rejected.
3. ensureRuntime() cached the rejected promise forever, so subsequent
calls would re-throw the same error without ever retrying. Combined
with (2), the port stayed orphaned until gateway restart.
Fixes#32387
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
On gateway restart, persisted non-terminal calls are now verified with
the provider (Twilio/Plivo/Telnyx) before being restored to memory.
This prevents phantom calls from blocking the concurrent call limit.
- Add getCallStatus() to VoiceCallProvider interface
- Implement for all providers with SSRF-guarded fetch
- Transient errors (5xx, network) keep the call with timer fallback
- 404/known-terminal statuses drop the call
- Restart max-duration timers for restored answered calls
- Skip calls older than maxDurationSeconds or without providerCallId
Pre-generates TTS audio for the configured inboundGreeting at startup
and serves it instantly when an inbound call connects, eliminating the
500ms+ TTS synthesis delay on the first ring.
Changes:
- twilio.ts: Add cachedGreetingAudio storage with getter/setter
- runtime.ts: Pre-synthesize greeting TTS after provider initialization
- webhook.ts: Play cached audio directly via media stream on inbound
connect, falling back to the original TTS path for outbound calls
or when no cached audio is available
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* TypeScript: add extensions to tsconfig and fix type errors
- Add extensions/**/* to tsconfig.json includes
- Export ProviderAuthResult, AnyAgentTool from plugin-sdk
- Fix optional chaining for messageActions across channels
- Add missing type imports (MSTeamsConfig, GroupPolicy, etc.)
- Add type annotations for provider auth handlers
- Fix undici/fetch type compatibility in zalo proxy
- Correct ChannelAccountSnapshot property usage
- Add type casts for tool registrations
- Extract usage view styles and types to separate files
* TypeScript: fix optional debug calls and handleAction guards