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.
IVR telecom is a wholesale VOIP provider, in United Kingdom. We service business internationally and have satisfied clients all over the globe. We have developed more efficient ways of delivering Voice over IP (VOIP) to our clients, by reducing start-up t
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