SIP (Session Initiation Protocol) Trunking is a method of sending media and phone services via the Internet. In order to understand SIP Trunking basics, it is helpful to know how VoIP (Voice Over Internet Protocol) works. VoIP allows companies to have a Business Phone System that operates through the Internet. It converts analog phone signals into digital signals. One way to use VoIP is through your PBX (Public Branch Exchange). In this instance, SIP Trunking can be an extension that carries calls over the Internet. One of the great things about SIP is that if you already have VoIP or a PBX, you do not have to upgrade your hardware.
What is the difference between SIP and traditional calling?
In the past, phone calls were placed over a landline. Calls then went through copper lines (or, simply, a phone line). This system was called the PSTN (Public Switched Telephone Network). Needless to say, a physical connection between your phone and the phone switch was necessary to make a call.
In contrast, SIP Trunks work off of a virtual line. A virtual line is simply a virtual connection that works off of the Internet. As previously stated, with SIP you can still make calls if your receiver uses VoIP or a PSTN. SIP operates via a packet switch network that converts the signals digitally. The signals are then routed to the receiver.
SIP Trunking Benefits
Understanding SIP Trunking basics is all well and good, but are there benefits to using SIP over other telecommunication methods? In fact, there are numerous benefits. SIP Trunking can make your business more competitive and profitable. Here’s how:
- SIP is easy to manage and maintain
- It is scalable based on your current needs
- SIP enhances business continuity
- It reduces the cost necessary for physical setup
- SIP can easily pair with the unified communication solutions