How does it all work with a UIFN TollFree / FreePhone DID?
This illustration will give examples of the different routes are that are involved in the call coming in or going out, where you will need the inbound tracks, the VoIP Channels / SIP Trunks and so forth.
Ready to order our International Voyced UIFN (Toll-Free/FreePhone) DID(s)?