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.
GSI was funded in 2003, to meet the growing demand of corporative telecom services between the world and Dominican Republic, provides dedicated origination and termination,as intermediaries in ALL areas in the Dominican Republic and USA, with more areas b
Read more