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.
Bara Phone Ltd. Is registered UK company in London, we are interconnected to tier one carriers using TDM and VOIP service to deliver high quietly service to its B2B and end user clients along with competitive international rates.