This is a device allowing a user to make VoIP calls using session initiation protocol (SIP). SIP is a telecommunication technology developed as a fast, easy standard for delivering IP-based data, voice, and video communications.
ASTechVoice is a new voice service that can replace your current telephone line from the telephone company. All you need is an internet connection and you can get unlimited local and long distance calling, low international rates, and all those features y
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