1. IP Telephony https://store.theartofservice.com/the-ip-telephony-toolkit.html

2. Telephony - IP telephony 1 IP telephony uses an Internet connection and hardware IP Phones, analog telephone adapters, or softphone computer applications to transmit conversations encoded as data packets. In addition to replacing plain old telephone service (POTS), IP telephony services are also competing with mobile phone services by offering free or lower cost connections via WiFi Hotspot (Wi- Fi)|hotspots. VoIP is also used on private networks which may or may not have a connection to the global telephone network. https://store.theartofservice.com/the-ip-telephony-toolkit.html

3. IP telephony 1 'Voice over Internet Protocol' ('VoIP') is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, IP communications, and broadband phone service. https://store.theartofservice.com/the-ip-telephony-toolkit.html

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