SIP VoIP Gateway
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.
Dialog 4425 IP Vision is a professional IP-phone with additional features, including multi-line management function and built-in graphics display to meet all user needs. In addition, it can be used in small meeting rooms.
Telefonicaweb Nuovovoip
Now with "NuovoVoip" by TelefonicaWeb.net ,you can call with internet telephony rates from any landline or mobile, without having to use internet, 3 g, wifi, etc
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