The common name shared by communication protocols, technologies and
methods ensuring the transfer of the voice signal via the Internet network or
by any other IP-networks. The signal is transferred by the communication
channel in the digital form and, as a rule, before transferring compresses in
order to remove abundance.
DID Number, DID Numbers, Local Telephone Numbers, VoIP Numbers, voip number, DIDs, 0800 Toll-Free, Fax, SMS, Porting, T.38, Virtual Phone Numbers, SIP Trunking, SIP trunk, Wholesale DID Numbers