A call shop is a business that provides physical phones for the purpose of making long-distance telephone calls. There are two main types of call shop payment methods; prepaid and postpaid.
Call Relay is a wise way of VoIP switched connection
amongst various IP networks. Call Relay makes sure that the organization of the
single central VoIP portal between IP networks, thus, makes sure that achieving
VoIP connections through the segments of IP networks will not be an issue.