Hey I’ve handled VAPI + SIP trunking setups and can help. VAPI works fine with BYOC as long as the carrier exposes standard SIP credentials, but Indian DIDs are mostly a compliance/regulatory issue rather than a VAPI limitation. Telnyx can work via SIP, though Indian number availability and onboarding can be inconsistent. In practice, India-focused providers like Exotel or Ozonetel tend to be more reliable for local routing, while global carriers such as Twilio or Plivo are solid fallbacks depending on DID availability. If you share your call flow and region requirements, I can recommend the most compatible setup and help with the SIP config.
@aryan