What is SIP Calling?
SIP stands for Session Initiation Protocol, and it works with the Voice-over Internet Protocol (VoIP) phone system. SIP calling is the process of transmitting calls over an internet connection using various devices, like computers and smartphones.
To understand how SIP calling can transform your business for the better, you must first understand how it works.
How Does SIP Work?
Right now, your business is running on a traditional phone system, which consists of three parts:
PBX (Private Branch Exchange): A telephone system used within an enterprise to make and receive calls.
PRI (Primary Rate Interface): A physical line that carries calls from one end to the other.
PSTN (Public Switched Telephone Network): The world’s collection of various public telephone networks, like landlines and phones.
SIP removes the need for multiple phone lines and PRI lines. Your SIP service provider virtually installs the SIP trunk over your internet connection. It enables you to connect your PBX with PSTN via the internet, omitting the PRI lines. Basically, instead of using copper lines, SIP uses the internet to send voice calls.
Now, you may ask, “If this just a replacement of copper lines with virtual lines, then why should I switch to SIP at all?”
Well, SIP has tons of benefits that will save a fortune for your business. One primary benefit of SIP is reducing unnecessary spending on traditional phone systems equipment, like copper lines. At the same time, it improves your business’s efficiency to make multiple calls from anywhere, at any time, and on any communication channel, like internet-based calls and traditional phone calls.
There is more to the picture. But before we get to that, let’s clear up the differences between SIP and VoIP.
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