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.
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