I may be able to help you on this one. Most CPaaS providers in the world, such as Twilio, Plivo, etc do not provide phone numbers in India, due to regulatory constraints. However, using alternative carriers and a VAPI compatible routing system, you can connect any number in the world to VAPI. Have a look at this document https://developers.cloudonix.com/integrations/telephonyIntegration/Provider/VAPI.ai If you have any questions, feel free to reach out via a DM and I can help you get this done.