Why Are SIP Trunks Needed in VoIP?

Voice over Internet Protocol (VoIP) is a proven technology that lets anyone place phone calls over an internet connection. With the rise of broadband, VoIP has become the definitive choice for phone service for consumers and businesses alike. People enjoy using VoIP phone service over traditional phone lines. Why? It offers many more capabilities than analog phones. And it can do it all for less than half the cost.

…And what is SIP Trunking?

First of all, SIP stands for Session Initiation Protocol. SIP Trunking is a method of sending voice and other unified communications services over the internet. It works with an IP-enabled PBX (Private Branch eXchange). SIP Trunking replaces traditional telephone lines. So, they are basically virtual phone lines that enable users to make and receive phone calls over the internet to anyone in the world with a phone number. SIP trunks utilize a packet switch network, in which voice calls are broken down into digital packets and sent across a network to the destination.

Any business with a modern IP PBX (a PBX that supports the use of SIP to transfer data) also needs a way to connect their exchange to the wider PSTN. SIP Trunks are becoming the industry standard for connecting business phone networks over the internet.

Click here to read more about the process of choosing a new SIP Trunk Provider.

Here are some benefits and why businesses are using them:

  • Cost saving: once you are set up with a SIP Trunk provider, line rental and calls are usually 
  • Geographic Flexibility: SIP Trunks remove the location-based restrictions on telecommunications, meaning you can choose any number, regardless of geography. Perfect for international-based customers or suppliers. You can move office – even move country – and keep the same number.
  • Reliability
  • Control: Upgrading your number and capacity of trunks is simple and easy.
  • From calls and texts, to emails, instant messaging and conferencing, SIP Trunks are the crucial building block in linking an organization’s multiple methods of communications into one unified solution.

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