Hi guys! I want to integrate with a call provider that is neither Twilio nor Vongage. Can I use Vapi assistants via WebSockets with my custom voice stream for that?

Yes, this is something I'm interested in as well

Hey Misha, and Ztill yes you can use other telephony providers and custom voice as well. For custom voice, just custom tts on you will find the api schema over here.   To use local phone numbers with Vapi, you need to check with your telephony provider if they support SIP trunking. If they do, then I will share the further process to set up SIP trunking using your telephony provider and Vapi.

Hey Shuhbam, thanks for the respose! Sonetel which I am considering using supports SIP trunking https://sonetel.com/en/sip-trunking/help/set-up-sip-trunk/ Would be glad to see the further process.

Please refer to the following guides that demonstrate how to establish a connection with your SIP provider. **Note**: While these guides use Twilio as an example, the process remains consistent across other telephony providers.