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.
ATTelecom is a leading worldwide wholesale carrier of International VoIP (voice calls over the Internet) traffic termination, CallBack service and Prepaid Calling Cards. We are the carrier of choice to many businesses around the world who seek high qualit
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