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.
QosNET your next generation Telco, Qosnet is among the premier voice and data communications companies in UK, Catering for businesses, ITSPs, and voice carrier providers. The company runs one of the most sophisticated communications networks in the U.K.We
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