We need to whitelist any IP address that is sending API calls to our backend server - as such, I wanted to find out what IP address(es) that API tool calls will be coming from on the VAPI side. 🙂 Thanks.

This might help? https://docs.vapi.ai/advanced/sip/sip-trunk

I think that set is just for SIP traffic, not outbound API requests made when a tool/function is called by the agent.