Transfer Call on Telnyx not sending callId {{customer.number}} We've migrated to Telnyx and connected to Vapi with the same config. The calls are working well - but we noticed that the tranfer call tool is not sending the original callerId despite us setting it in the tool transferCall tool definition callerId: "{{customer.number}}" callId example 019e8915-df9d-7004-9dce-7265d6ba618b

Hi @Chris , I can help troubleshoot this. I've worked with Vapi and Telnyx integrations and have seen caller ID variables behave differently after migrations. I'll check whether

{{customer.number}}

is being resolved correctly, how the transfer tool is passing the caller ID, and whether Telnyx is overriding the outbound transfer caller ID. Feel free to send me the transfer tool configuration and call logs, and I'll take a look.

Hi Adam - appreciate your help This is the transferCall tool we are sending to Vapi { "type": "transferCall", "destinations": [ { "type": "number", "number": "+15555550142", "message": "I'm just forwarding your call to Maplewood Pines Golf Club. Please stay on the line.", "callerId": "{{customer.number}}" } ], "function": { "name": "transferCall", "description": "Use this function to transfer the call if the customer wants to speak to a person, representative, or department or the Golf Course Pro-shop. Only use it when following instructions that explicitly ask you to use the transferCall function. DO NOT call this function unless you are instructed to do so.", "parameters": { "type": "object", "properties": { "destination": { "type": "string", "enum": [ "+15555550142" ], "description": "The destination to transfer the call to. For phone numbers use the format number,extension. For SIP use the SIP URI." } }, "required": [ "destination" ] } }, "messages": [ { "type": "request-start", "content": "I'm just forwarding your call to Maplewood Pines Golf Club. Please stay on the line.", "conditions": [ { "param": "destination", "operator": "eq", "value": "+15555550142" } ] } ] } *I've changed the number and names We also have a problem that its not forwarding the extension either - but this is less of a problem

hey, Can you send the Telnyx call logs? if you have them available