Hi serotoninwarrior6367,
Yes, you can definitely try other telephony providers that offer Indian phone numbers, as long as they are supported with Vapi.
That said, [vivadigitally.com](
http://vivadigitally.com) is already being used successfully by many users and is often a recommended option for Indian number support. It has worked well for several similar use cases, so it may be a good provider to evaluate first.