diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64c92a26f11..dd68d02d47c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,6 +49,7 @@ Docs: https://docs.openclaw.ai
 - Google Meet: stop advertising legacy `mode: "realtime"` to agents and config UIs, while keeping it as a hidden compatibility alias for `mode: "agent"`, so new joins use the STT -> OpenClaw agent -> TTS path instead of selecting the direct realtime voice fallback.
 - Google Meet: add `chrome.audioBufferBytes` for generated command-pair SoX audio commands and lower the default buffer from SoX's 8192 bytes to 4096 bytes to reduce Chrome talk-back latency.
 - Google Meet: split realtime provider config into agent-mode transcription and bidi-mode voice providers, and migrate legacy Gemini Live bidi configs with `doctor --fix`, so Gemini Live can back direct bidi fallback without breaking the default OpenClaw agent talk-back path.
+- Google Meet: expose `voiceCall.postDtmfSpeechDelayMs` in the plugin manifest schema and setup hints, so manifest-based config editing accepts the runtime-supported Twilio delay key. Thanks @vincentkoc.
 - Telegram: render shared interactive reply buttons in reply delivery so plugin approval messages show inline keyboards. (#76238) Thanks @keshavbotagent.
 - Agents/cli-runner: drop a saved `claude-cli` resume sessionId at preparation time when its on-disk transcript no longer exists in `~/.claude/projects/`, so a stale binding from a half-installed `update.run` cannot trap follow-up runs (auto-reply / Telegram direct) in a `claude --resume` timeout loop; the run starts fresh and the new sessionId is written back through the existing post-run flow. (#77030; refs #77011) Thanks @openperf.
 - Release validation: install the cross-OS TypeScript harness through Windows-safe Node/npm shims so native Windows package checks reach the OpenClaw smoke suites instead of exiting before artifact capture. Thanks @vincentkoc.
diff --git a/extensions/google-meet/index.test.ts b/extensions/google-meet/index.test.ts
index 87fba57c8d8..fd62355bc01 100644
--- a/extensions/google-meet/index.test.ts
+++ b/extensions/google-meet/index.test.ts
@@ -4,6 +4,7 @@ import { tmpdir } from "node:os";
 import path from "node:path";
 import { PassThrough, Writable } from "node:stream";
 import { createContext, Script } from "node:vm";
+import { validateJsonSchemaValue, type JsonSchemaObject } from "openclaw/plugin-sdk/config-schema";
 import type { RealtimeTranscriptionProviderPlugin } from "openclaw/plugin-sdk/realtime-transcription";
 import type { RealtimeVoiceProviderPlugin } from "openclaw/plugin-sdk/realtime-voice";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
@@ -479,17 +480,13 @@ describe("google-meet plugin", () => {
     });
   });
 
-  it("declares barge-in config metadata in the plugin entry and manifest", () => {
+  it("declares advanced config metadata in the plugin entry and manifest", () => {
     const manifest = JSON.parse(
       readFileSync(new URL("./openclaw.plugin.json", import.meta.url), "utf8"),
     ) as {
       uiHints?: Record<string, unknown>;
-      configSchema?: {
-        properties?: {
-          chrome?: {
-            properties?: Record<string, unknown>;
-          };
-        };
+      configSchema?: JsonSchemaObject & {
+        properties?: Record<string, JsonSchemaObject & { properties?: Record<string, unknown> }>;
       };
     };
     const entry = plugin as unknown as {
@@ -504,6 +501,7 @@ describe("google-meet plugin", () => {
       "chrome.bargeInRmsThreshold": expect.objectContaining({ advanced: true }),
       "chrome.bargeInPeakThreshold": expect.objectContaining({ advanced: true }),
       "chrome.bargeInCooldownMs": expect.objectContaining({ advanced: true }),
+      "voiceCall.postDtmfSpeechDelayMs": expect.objectContaining({ advanced: true }),
     });
     expect(manifest.uiHints).toMatchObject({
       "chrome.audioBufferBytes": expect.objectContaining({ advanced: true }),
@@ -511,6 +509,7 @@ describe("google-meet plugin", () => {
       "chrome.bargeInRmsThreshold": expect.objectContaining({ advanced: true }),
       "chrome.bargeInPeakThreshold": expect.objectContaining({ advanced: true }),
       "chrome.bargeInCooldownMs": expect.objectContaining({ advanced: true }),
+      "voiceCall.postDtmfSpeechDelayMs": expect.objectContaining({ advanced: true }),
     });
     expect(manifest.configSchema?.properties?.chrome?.properties).toMatchObject({
       audioBufferBytes: expect.objectContaining({ type: "number", default: 4096 }),
@@ -522,6 +521,19 @@ describe("google-meet plugin", () => {
       bargeInPeakThreshold: expect.objectContaining({ type: "number", default: 2500 }),
       bargeInCooldownMs: expect.objectContaining({ type: "number", default: 900 }),
     });
+    expect(manifest.configSchema?.properties?.voiceCall?.properties).toMatchObject({
+      postDtmfSpeechDelayMs: expect.objectContaining({ type: "number", default: 5000 }),
+    });
+    const result = validateJsonSchemaValue({
+      schema: manifest.configSchema!,
+      cacheKey: "google-meet.manifest.voice-call-post-dtmf-speech-delay",
+      value: {
+        voiceCall: {
+          postDtmfSpeechDelayMs: 750,
+        },
+      },
+    });
+    expect(result.ok).toBe(true);
   });
 
   it("resolves the realtime consult agent id", () => {
diff --git a/extensions/google-meet/openclaw.plugin.json b/extensions/google-meet/openclaw.plugin.json
index b909b035a6d..554c539007f 100644
--- a/extensions/google-meet/openclaw.plugin.json
+++ b/extensions/google-meet/openclaw.plugin.json
@@ -144,6 +144,11 @@
       "help": "Compatibility setting from the old post-connect DTMF flow. Twilio Meet joins now play DTMF before realtime connect.",
       "advanced": true
     },
+    "voiceCall.postDtmfSpeechDelayMs": {
+      "label": "Legacy Post-DTMF Speech Delay (ms)",
+      "help": "Compatibility setting from the old delayed-speech flow. Twilio Meet joins now carry the intro as the initial Voice Call message.",
+      "advanced": true
+    },
     "voiceCall.introMessage": {
       "label": "Voice Call Intro Message",
       "advanced": true
@@ -421,6 +426,10 @@
             "type": "number",
             "default": 2500
           },
+          "postDtmfSpeechDelayMs": {
+            "type": "number",
+            "default": 5000
+          },
           "introMessage": {
             "type": "string"
           }