My project has an IVR system which I'd like to build with Twilio. The project is targeted to Russia, so I expect inbound calls to the IVR from Russian phone numbers. An IVR's phone number should be toll-free.
The Twilio Console's "Buy a Number" section doesn't offer Russia in the list of countries. Also, I talked to a Twilio representative by phone and he said currently I can't get a Russian Toll Free number from Twilio (for inbound calls).
My question is:
If I buy a Russian toll-free number from one of Russian providers, will I be able to bind it somehow to Twilio for incoming calls, so that Russian phone numbers can call it and use the Twilio IVR?
Twilio developer evangelist here.
You can do this as Twilio provides SIP interfaces too. I am no expert in SIP though, so the best thing I can do is direct you to this walkthrough that shows you all the steps you need to go through to connect an external number to Twilio: