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.
TechTerra Communications Inc. was founded in 2003 to provide customers a flexible, quality long distance service with low rates. Our goal is to provide a full suite of products and services to fit the telecommunication needs of consumers and businesses, i
Read more