Hey I am trying to forward a call to my indian phone number from the agent over the call and it ended the call i was not transferred but then i tried to get transferred to anohter agent i made in vapi using vapi provide usa number it also failed can you please explain me what is happening!

To diagnose why your call transfer is failing, first check the

endedReason

for your call using the Vapi API. Run the following command (replace

{call_id}

and

YOUR_API_KEY

):

bash
curl -X GET "https://api.vapi.ai/call/{call_id}" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json"

If the

endedReason

is not

assistant-forwarded-call

, review your assistant's configuration—ensure

phoneCallProviderBypassEnabled

is set to

false

and remove

"phone-call-control"

from

serverMessages

if present. This will help you pinpoint if the issue is with your configuration or the telephony provider. For more details, see the [Debug call forwarding drops guide](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops). Source: - [Debug call forwarding drops](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops)

There is no property named as { "phoneCallProviderBypassEnabled": false } @Vapi Support Bot

It looks like the

phoneCallProviderBypassEnabled

property is not a direct setting in the dashboard UI, but is part of the transfer tool's configuration when defined via API or JSON. To ensure your call transfer works, make sure your transfer tool includes the required

destination

parameter, like this:

json
"parameters": {
  "type": "object",
  "properties": {
    "destination": {
      "type": "string",
      "enum": ["+1234567890"], // Replace with your target number in E.164 format
      "description": "The destination to transfer the call to."
    }
  },
  "required": ["destination"]
}

Also, remove

"phone-call-control"

from your assistant's

serverMessages

if present. This should resolve most transfer issues. For more, see the [call forwarding guide](https://docs.vapi.ai/call-forwarding). Sources: - [Vapi documentation: call forwarding](https://docs.vapi.ai/call-forwarding) - [Debug call forwarding drops](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops)

Hi, could you please provide a call id where you experienced this issue? We would like to review the logs to identify the cause.