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.
AirTouch WiFiVoIP enable you can enjoy the best of both world, seamlessly. Enjoy the affordable AirTouch WiFiVoIP network when you are within WiFi range and automatic forward calls to your GSM network otherwise. In fact both WiFiVoIP and GSM will work at
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