Benefits of SIP Trunks
When you see the term ‘SIP trunk’ what’s the first thing that comes to mind? Perhaps an elephant using it’s exceptional appendage to quench it’s thirst? Maybe. However, when it comes to business communications it means something different, yet still quite useful and powerful for the those that use them.
“The Session Initiation Protocol (SIP) is a signaling protocol used to establish, modify, and tear-down communication sessions in an IP network. These sessions can be as simple as a two-way call or as involved as a multi-party Web conference complete with audio, video, and a shared whiteboard application.
SIP was modeled after the Hypertext Transfer Protocol (HTTP) and contains many of the basic tenets of that protocol. First, SIP is an English-like, text-based protocol that is not only easy to read, but is also easy to understand, debug, and extend. New features can be added to SIP without the need to modify any of the SIP server entities that might exist within any particular call path.
Second, and perhaps most importantly, SIP is media agnostic. In other words, SIP can be used to establish sessions of nearly any media type imaginable. As communications move well beyond that of a simple phone call, SIP is fully equipped to support any and all media (voice, video, instant message, text, etc.) that might come along.
In traditional wireline telephony, phone calls are passed to and from an enterprise and the Public Switched Telephone Network (PSTN) over a dedicated line or bundle of circuits. These could be analog trunks such as loop or ground start lines, or digital trunks such as T1, E1, ISDN, or PRI. Since SIP is an IP protocol, it runs on the same network that data traffic runs on. This convergence of voice and data means that a SIP trunk is a logical concept that has more to do with bandwidth than physical wires or circuits.
The benefits of SIP trunks over traditional trunks are many:
– Converged voice and data
– Rich communications
– Equipment reduction which leads to reduced power and space requirements
– Flexible costs due to burst pricing
– Improved reliability and failover strategies
(Author: Andrew Prokop)”
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