VoIP Services Market - PMR's Analysis of Global Key Trends, Drivers, and Restraints from Supply and Demand Perspectives.
Voice over Internet Protocol (VoIP) is a methodology which uses various technologies to provide communication services over a packet switched network (IP data network). The VoIP services convert the voice signals into digital signals that are carried over the IP based network. The call could be done on a regular telephone, VoIP phone, computer or mobile phone. VoIP services are implemented using various protocols such as H.323, Session Initiation Protocol (SIP), Inter Asterisk eXchange (IAX), Real Time Protocol (RTP), and...
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