fix(voice-call): reap stale pre-answer calls

CHANGELOG.md

@@ -73,7 +73,7 @@ Docs: https://docs.openclaw.ai
 - Config/doctor: reject legacy `secretref-env:<ENV_VAR>` marker strings on SecretRef credential paths and migrate valid markers to structured env SecretRefs with `openclaw doctor --fix`. Fixes #51794. Thanks @halointellicore.
 - Providers/OpenAI: separate API-key and Codex sign-in onboarding groups, and avoid replaying stale OpenAI Responses reasoning blocks after a model route switch.
 - Providers/ElevenLabs: omit the MP3-only `Accept` header for PCM telephony synthesis, so Voice Call requests for `pcm_22050` no longer receive MP3 audio. Fixes #67340. Thanks @marcchabot.
-- Plugins/Voice Call: honor configured TTS timeouts for Twilio media-stream playback and fail empty telephony audio instead of completing as silence. Fixes #42071; supersedes #60957. Thanks @Ryce and @sliekens.
+- Plugins/Voice Call: reap stale pre-answer calls by default, honor configured TTS timeouts for Twilio media-stream playback, and fail empty telephony audio instead of completing as silence. Fixes #42071; supersedes #60957. Thanks @Ryce and @sliekens.
 - Skills: honor legacy `metadata.clawdbot` requirements and installer hints when `metadata.openclaw` is absent, so older skills no longer appear ready when required binaries are missing. Fixes #71323. Thanks @chen-zhang-cs-code.
 - Browser/config: expand `~` in `browser.executablePath` before Chromium launch, so home-relative custom browser paths no longer fail with `ENOENT`. Fixes #67264. Thanks @Quratulain-bilal.
 - Telegram/streaming: hide tool-progress status updates by default while keeping explicit `streaming.preview.toolProgress` opt-in support for edited preview messages. Fixes #71320. Thanks @neeravmakwana.

extensions/voice-call/src/config.test.ts

@@ -226,6 +226,14 @@ describe("validateProviderConfig", () => {
   });
 });
 
+describe("resolveVoiceCallConfig", () => {
+  it("enables the pre-answer stale call reaper by default", () => {
+    const config = resolveVoiceCallConfig({ enabled: true, provider: "mock" });
+
+    expect(config.staleCallReaperSeconds).toBe(120);
+  });
+});
+
 describe("normalizeVoiceCallConfig", () => {
   it("fills nested runtime defaults from a partial config boundary", () => {
     const normalized = normalizeVoiceCallConfig({

extensions/voice-call/src/config.ts

@@ -331,11 +331,10 @@ export const VoiceCallConfigSchema = z
 
     /**
      * Maximum age of a call in seconds before it is automatically reaped.
-     * Catches calls stuck in unexpected states (e.g., notify-mode calls that
-     * never receive a terminal webhook). Set to 0 to disable.
-     * Default: 0 (disabled). Recommended: 120-300 for production.
+     * Catches calls stuck before answer (for example, local mock calls that
+     * never receive provider webhooks). Set to 0 to disable.
      */
-    staleCallReaperSeconds: z.number().int().nonnegative().default(0),
+    staleCallReaperSeconds: z.number().int().nonnegative().default(120),
 
     /** Silence timeout for end-of-speech detection (ms) */
     silenceTimeoutMs: z.number().int().positive().default(800),

extensions/voice-call/src/webhook.test.ts

@@ -353,11 +353,12 @@ async function runStaleCallReaperCase(params: {
   callAgeMs: number;
   staleCallReaperSeconds: number;
   advanceMs: number;
+  callOverrides?: Partial<CallRecord>;
 }) {
   const now = new Date("2026-02-16T00:00:00Z");
   vi.setSystemTime(now);
 
-  const call = createCall(now.getTime() - params.callAgeMs);
+  const call = { ...createCall(now.getTime() - params.callAgeMs), ...params.callOverrides };
   const { manager, endCall } = createManager([call]);
   const config = createConfig({ staleCallReaperSeconds: params.staleCallReaperSeconds });
   const server = new VoiceCallWebhookServer(config, manager, provider);
@@ -485,6 +486,19 @@ describe("VoiceCallWebhookServer stale call reaper", () => {
       await server.stop();
     }
   });
+
+  it("does not reap calls that reached the answered state", async () => {
+    const { endCall } = await runStaleCallReaperCase({
+      callAgeMs: 120_000,
+      staleCallReaperSeconds: 60,
+      advanceMs: 30_000,
+      callOverrides: {
+        state: "answered",
+        answeredAt: new Date("2026-02-15T23:58:30Z").getTime(),
+      },
+    });
+    expect(endCall).not.toHaveBeenCalled();
+  });
 });
 
 describe("VoiceCallWebhookServer path matching", () => {

extensions/voice-call/src/webhook/stale-call-reaper.ts

@@ -1,4 +1,5 @@
 import type { CallManager } from "../manager.js";
+import { TerminalStates } from "../types.js";
 
 const CHECK_INTERVAL_MS = 30_000;
 
@@ -15,6 +16,10 @@ export function startStaleCallReaper(params: {
   const interval = setInterval(() => {
     const now = Date.now();
     for (const call of params.manager.getActiveCalls()) {
+      if (call.answeredAt || TerminalStates.has(call.state)) {
+        continue;
+      }
+
       const age = now - call.startedAt;
       if (age > maxAgeMs) {
         console.log(