fix(voice-call): handle Telnyx callback payloads

CHANGELOG.md

@@ -27,6 +27,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Voice-call/Telnyx: preserve inbound/outbound callback metadata and read transcription text from Telnyx's current `transcription_data` payload.
 - Codex harness: route native `request_user_input` prompts back to the originating chat, preserve queued follow-up answers, and honor newer app-server command approval amendment decisions.
 - Codex status: report Codex CLI OAuth as `oauth (codex-cli)` for native `codex/*` sessions instead of showing unknown auth. Fixes #70688. Thanks @jb510.
 - Codex harness/context-engine: redact context-engine assembly failures before logging, so fallback warnings do not serialize raw error objects. (#70809) Thanks @jalehman.

extensions/voice-call/src/providers/telnyx.test.ts

@@ -185,4 +185,74 @@ describe("TelnyxProvider.parseWebhookEvent", () => {
     }
     expect(event.dedupeKey).toBe("telnyx:req:abc");
   });
+
+  it("maps call direction and phone numbers from Call Control callbacks", () => {
+    const provider = new TelnyxProvider({
+      apiKey: "KEY123",
+      connectionId: "CONN456",
+      publicKey: undefined,
+    });
+    const result = provider.parseWebhookEvent(
+      createCtx({
+        rawBody: JSON.stringify({
+          data: {
+            id: "evt-inbound",
+            event_type: "call.initiated",
+            payload: {
+              call_control_id: "call-1",
+              direction: "incoming",
+              from: "+15551111111",
+              to: "+15550000000",
+            },
+          },
+        }),
+      }),
+    );
+
+    expect(result.events).toHaveLength(1);
+    expect(result.events[0]).toEqual(
+      expect.objectContaining({
+        type: "call.initiated",
+        direction: "inbound",
+        from: "+15551111111",
+        to: "+15550000000",
+      }),
+    );
+  });
+
+  it("reads transcription text from Telnyx transcription_data payloads", () => {
+    const provider = new TelnyxProvider({
+      apiKey: "KEY123",
+      connectionId: "CONN456",
+      publicKey: undefined,
+    });
+    const result = provider.parseWebhookEvent(
+      createCtx({
+        rawBody: JSON.stringify({
+          data: {
+            id: "evt-transcription",
+            event_type: "call.transcription",
+            payload: {
+              call_control_id: "call-1",
+              transcription_data: {
+                transcript: "hello this is a test speech",
+                is_final: false,
+                confidence: 0.977219,
+              },
+            },
+          },
+        }),
+      }),
+    );
+
+    expect(result.events).toHaveLength(1);
+    expect(result.events[0]).toEqual(
+      expect.objectContaining({
+        type: "call.speech",
+        transcript: "hello this is a test speech",
+        isFinal: false,
+        confidence: 0.977219,
+      }),
+    );
+  });
 });

extensions/voice-call/src/providers/telnyx.ts

@@ -31,6 +31,21 @@ export interface TelnyxProviderOptions {
   skipVerification?: boolean;
 }
 
+function normalizeTelnyxDirection(
+  direction: string | undefined,
+): "inbound" | "outbound" | undefined {
+  switch (direction) {
+    case "incoming":
+    case "inbound":
+      return "inbound";
+    case "outgoing":
+    case "outbound":
+      return "outbound";
+    default:
+      return undefined;
+  }
+}
+
 export class TelnyxProvider implements VoiceCallProvider {
   readonly name = "telnyx" as const;
 
@@ -143,6 +158,9 @@ export class TelnyxProvider implements VoiceCallProvider {
       callId,
       providerCallId: data.payload?.call_control_id,
       timestamp: Date.now(),
+      direction: normalizeTelnyxDirection(data.payload?.direction),
+      from: data.payload?.from,
+      to: data.payload?.to,
     };
 
     switch (data.event_type) {
@@ -169,9 +187,10 @@ export class TelnyxProvider implements VoiceCallProvider {
         return {
           ...baseEvent,
           type: "call.speech",
-          transcript: data.payload?.transcription || "",
-          isFinal: data.payload?.is_final ?? true,
-          confidence: data.payload?.confidence,
+          transcript:
+            data.payload?.transcription_data?.transcript ?? data.payload?.transcription ?? "",
+          isFinal: data.payload?.transcription_data?.is_final ?? data.payload?.is_final ?? true,
+          confidence: data.payload?.transcription_data?.confidence ?? data.payload?.confidence,
         };
 
       case "call.hangup":
@@ -336,10 +355,18 @@ interface TelnyxEvent {
   payload?: {
     call_control_id?: string;
     client_state?: string;
+    direction?: string;
+    from?: string;
+    to?: string;
     text?: string;
     transcription?: string;
     is_final?: boolean;
     confidence?: number;
+    transcription_data?: {
+      transcript?: string;
+      is_final?: boolean;
+      confidence?: number;
+    };
     hangup_cause?: string;
     digit?: string;
     [key: string]: unknown;