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.
Founded in 1997, Band-X is a privately-owned company, headquartered in London, with investors including Madison Dearborn and Morgan Stanley Venture Partners.. Band-X provides the telecoms industry with a range of specialist voice services delivering great
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