Background Information Internet Protocol (IP) Telephony
Voice over Internet Protocol (VoIP) or Internet Telephony refers to communication technologies involved in transmitting voice and multimedia communications over data networks and the Internet. VoIP provides more features, easier management and less expensive cost of office communications by leveraging VoIP-specific hardware and IP-based service providers. IP telephony also includes a variety of communication applications -- voice, fax, SMS, and/or voice-messaging applications -- that are transported through the Internet rather than the public switched telephone network (PSTN).
