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.
Red Telecom Ltd
Based in South London, Red Telecommunications is a private limited company offering advanced communication solutions in a rapidly changing environment encompassing both traditional PSTN and new Internet technologies, for both the home and business user, w
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