diff --git a/extensions/voice-call/src/manager.ts b/extensions/voice-call/src/manager.ts
index 2e2e4661b..82ed71a1a 100644
--- a/extensions/voice-call/src/manager.ts
+++ b/extensions/voice-call/src/manager.ts
@@ -386,7 +386,10 @@ export class CallManager {
     }
 
     try {
-      await this.speak(callId, prompt);
+      const speakResult = await this.speak(callId, prompt);
+      if (!speakResult.success) {
+        return { success: false, error: speakResult.error || "Failed to speak prompt" };
+      }
 
       call.state = "listening";
       this.persistCallRecord(call);
diff --git a/extensions/voice-call/src/webhook.ts b/extensions/voice-call/src/webhook.ts
index 09e96ffed..2f6e2c6df 100644
--- a/extensions/voice-call/src/webhook.ts
+++ b/extensions/voice-call/src/webhook.ts
@@ -352,7 +352,10 @@ export class VoiceCallWebhookServer {
 
       if (result.text) {
         console.log(`[voice-call] AI response: "${result.text}"`);
-        await this.manager.speak(callId, result.text);
+        const speakResult = await this.manager.speak(callId, result.text);
+        if (!speakResult.success) {
+          console.error(`[voice-call] Failed to speak: ${speakResult.error}`);
+        }
       }
     } catch (err) {
       console.error(`[voice-call] Auto-response error:`, err);