VAPI•2y ago

Cannot get the call transfer to work

I cannot get the call transfer to work. I bought a number on Vapi and cannot get an AI Assistant to transfer to it.

I have the following in my prompt:

...

Step 2: The user now needs to be transferred to the follow-up questionnaire, use the transferCall function with this sipUri: +13465676441@vapi.sip.twilio.com

...

Step 2: The user now needs to be transferred to the follow-up questionnaire, use the transferCall function with this sipUri: +13465676441@vapi.sip.twilio.com

...

Step 2: The user now needs to be transferred to the follow-up questionnaire, use the transferCall function with this sipUri: +13465676441@vapi.sip.twilio.com

...

Step 2: The user now needs to be transferred to the follow-up questionnaire, use the transferCall function with this sipUri: +13465676441@vapi.sip.twilio.com

I have the following in my

forwardingPhoneNumbers

forwardingPhoneNumbers

forwardingPhoneNumbers

forwardingPhoneNumbers:

    "forwardingPhoneNumbers": [
        {
            "number": "+13465676441",
            "sipUri": "+13465676441@vapi.sip.twilio.com",
            "message": "transferring you over, thanks"
        }
    ],

    "forwardingPhoneNumbers": [
        {
            "number": "+13465676441",
            "sipUri": "+13465676441@vapi.sip.twilio.com",
            "message": "transferring you over, thanks"
        }
    ],

    "forwardingPhoneNumbers": [
        {
            "number": "+13465676441",
            "sipUri": "+13465676441@vapi.sip.twilio.com",
            "message": "transferring you over, thanks"
        }
    ],

    "forwardingPhoneNumbers": [
        {
            "number": "+13465676441",
            "sipUri": "+13465676441@vapi.sip.twilio.com",
            "message": "transferring you over, thanks"
        }
    ],

Ask Inkeep•5/2/24, 12:00 PM

Hi @izzylaz, I'm an AI assistant for Vapi. I'll analyze available sources and get back to you shortly.

Ask Inkeep•5/2/24, 12:00 PM

-----------------------------
While I generate an answer, here are some sources that might be helpful:

Call Forwarding
Function Calling
Inbound Support Example
Create Phone Call
-----------------------------

Ask Inkeep•5/2/24, 12:00 PM

Answer

To address the issues you're experiencing with call transfer functionality on Vapi, it's important to ensure that your setup is aligned with Vapi's capabilities and configurations as outlined in the documentation. Based on your description, you are attempting to use the transferCalltransferCall function with a sipUrisipUri.

The transferCalltransferCall function, as described in the Vapi documentation, allows for the transfer of calls to a specified forwarding number when such a number is predefined in the assistant's configuration. To effectively utilize this function, make sure that your assistant's configuration is properly set up to include the

forwardingPhoneNumbers

forwardingPhoneNumbers

or a forwardingPhoneNumberforwardingPhoneNumber attribute that you wish to transfer calls to (1) .

For calls that originate from SIP, specifying a SIP URI (sipUrisipUri) in the

forwardingPhoneNumbers

forwardingPhoneNumbers

array is crucial, as Vapi currently supports transferring calls to SIP URIs through the SIP REFER method (2) . It's also important to ensure that the SIP URI format is correct and that your receiving system is configured to accept SIP REFER requests.

If you are encountering issues despite this setup, it might be useful to review the implementation details and ensure that there are no discrepancies in how the transferCalltransferCall function is invoked in your prompt and how the

forwardingPhoneNumbers

forwardingPhoneNumbers

are defined in your configuration. Additionally, verifying that the receiving system (in this case, possibly Twilio given the SIP URI format) is correctly configured to handle incoming SIP REFER requests could help resolve the issue.

Remember to test your setup thoroughly after making any adjustments to ensure that the call transfer functionality operates as expected. If problems persist, reviewing Vapi's logs and the configuration of the external sy

Ask Inkeep•5/2/24, 12:00 PM

stems involved in the call transfer process for any errors or misconfigurations may provide further insights.

For detailed information on Vapi's call forwarding and function calling capabilities, please refer to the provided documentation on Call Forwarding and Function Calling (2) (1) .

Sources
[1] Function Calling
[2] Call Forwarding

AAsk Inkeep stems involved in the call transfer process for any errors or misconfigurations ...

Ask InkeepAPP•5/2/24, 12:12 PM

Got it. Tagging @Vapi Team for additional help.

living-lavender•5/2/24, 12:40 PM

Can you provide me the purchased number in DM?

worthy-azureOP•5/2/24, 1:06 PM

will do thanks!

Cannot get the call transfer to work

Answer

Similar Threads

Similar Threads

Answer

Similar Threads