Session Initiation Protocol facilitates conversations over the Internet and other IP networks. Like a telephone number, a SIP address is a unique identifier for each user on the global telephone network or for an e-mail address. It is also known as a SIP Uniform Resource Identifier.
What is SIP?
You receive a SIP address when you register for a SIP account, and it acts as a communication handle that people use to contact you. SIP addresses can be translated into phone numbers, which are easier to track as contact IDs than SIP addresses.
Use a SIP account to set up VoIP desk phones, softphones, and mobile VoIP clients. A SIP account opens the door to free video calling and HD voice calling on many platforms, including Windows and Mac computers and iOS and Android mobile devices. SIP-to-SIP calls between two SIP addresses over the Internet are almost always free.
For companies with many international contacts, SIP offers huge savings. Because it is a VoIP service with few hardware purchases and low maintenance costs, it quickly pays for itself in terms of installation and employee adoption.
