RESIDENTIAL AREA

17 January 2020

RESIDENTIAL AREA

Voice over Internet Protocol, abbreviated as VoIP. It is a voice call technology. Voice calls and multimedia conferences are achieved through the Internet Protocol (IP), that is, communication is performed via the Internet. Other informal names are IP telephony, Internet telephony, broadband telephony, and broadband phone service. Advantage  (1) Communication fees are low. Because VoIP us

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