Please help, im receiving end call report before vapi send the transfer call. Call ID: 3b7254f3-381d-4491-bb0d-71fb92b23f61 LOG: 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=tool-calls | number=609XXXYYY ⚙️ Tool llamada: save_data con args: {'call_reason': 'urgent_incident', 'postal_code': '41003'} ✅ Datos guardados para call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61: {'postal_code': '41003', 'call_reason': 'urgencia'} 44.249.38.145 - - [16/Sep/2025 08:43:13] "POST /webhook HTTP/1.1" 200 - 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=conversation-update | number=609XXXYYY 44.249.38.145 - - [16/Sep/2025 08:43:15] "POST /webhook HTTP/1.1" 200 - 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=transfer-destination-request | number=609XXXYYY ✅ Teléfono encontrado: 666777888 {'type': 'sip', 'sipUri': 'sip:entrada-666777888@192.168.X.Y', 'message': 'Vamos a transferir su llamada, espere por favor.', 'description': 'Transferencia automática según contexto', 'transferPlan': {'mode': 'blind-transfer-add-summary-to-sip-header', 'sipVerb': 'refer'}} 44.249.38.145 - - [16/Sep/2025 08:43:15] "POST /webhook HTTP/1.1" 200 - .. multiple conversation-update and status-update and then: 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=status-update | number=609XXXYYY 44.249.38.145 - - [16/Sep/2025 08:43:33] "POST /webhook HTTP/1.1" 200 - 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=status-update | number=609XXXYYY 44.249.38.145 - - [16/Sep/2025 08:43:35] "POST /webhook HTTP/1.1" 200 - 📞 call_id=3b7254f3-381d-4491-bb0d-71fb92b23f61 | type=end-of-call-report | number=609XXXYYY 44.249.38.145 - - [16/Sep/2025 08:43:38] "POST /webhook HTTP/1.1" 200 -

Suggestion: Check that your SIP provider (e.g., Telnyx) has SIP REFER enabled, as Vapi requires this for call transfers. If it's not enabled, the transfer will fail and you may receive an end-of-call report before the transfer occurs. Example configuration for SIP transfer:

json
{
  "type": "transferCall",
  "destinations": [
    {
      "type": "sip",
      "sipUri": "sip:entrada-666777888@192.168.X.Y"
    }
  ]
}

Make sure SIP REFER is enabled on your SIP trunk and the destination is correct. [See Vapi SIP Trunking docs for details.](https://docs.vapi.ai/advanced/sip/sip-trunk#sip-refer-call-transfer) Sources: - [Vapi SIP Trunking Documentation](https://docs.vapi.ai/advanced/sip/sip-trunk#sip-refer-call-transfer) - [Vapi Call Forwarding Documentation](https://docs.vapi.ai/call-forwarding)

We are reviewing the details of your request and will reach out to you when we have an update or if we need additional information.