----------------------------- **While I generate an answer, here are some sources that might be helpful**: * [Call Forwarding]() * [Call Ended Reason]() * [Function Calling]() * [Outbound Sales Example]() -----------------------------

### Answer It sounds like you are experiencing an issue with the call transfer process where the call ends unexpectedly after the transfer command is issued by the assistant. This issue might be related to how the assistant's behaviors are configured or how the

transferCall

function behaves under certain conditions. One possible explanation could be related to how the call forwarding is set up within your assistant's configuration. If the

forwardingPhoneNumber

is used, the assistant should transfer the call correctly, but if there's an issue with the configuration or with the network connectivity of the forwarding number, it could result in the call ending [(1)]() . Another potential cause could be related to an assistant-related error, such as

assistant-forwarded-call

, which indicates the assistant successfully transferred the call, but there might be other underlying issues not visible in the dashboard that could cause the call to drop immediately after transfer [(2)]() . To troubleshoot this issue, ensure that: - The

forwardingPhoneNumber

is correctly configured and active. - No network issues could be affecting the transfer process. - The assistant's logic for transferring the call is set up correctly and there are no errors in the assistant's configuration that might cause the call to end prematurely. If the problem persists, reviewing the detailed logs available through the Vapi dashboard and checking for any error messages related to the call transfer might provide more insight into what is going wrong. For detailed guidance on setting up call forwarding and handling potential issues, you might want to refer to the [Call Forwarding documentation]() [(1)]() .

Got it. Tagging @User for additional help.