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.
From mobiSIP Android or iPhone: SIP Client iPhone is uniquely designed and developed to add the power of making voice over internet transfer protocol calls directly through the Android or iPhone. It’s developed by mobisnow.