What is SIP Trunking?

SIP Trunking uses Internet Protocol (IP) to enable organisations to place telephone calls through the Public Switched Telephone Network (PSTN). SIP trunking technology requires either an Internet connection, or a VoIP vendor, an IP-enabled PBX, and a border element or gateway to support IP-based voice communications. Using SIP, voice becomes an application on the IP Network... like email or web is an application.


If you have a SIP capable PBX, you can use our SIP Trunks service with this equipment to provide a telephony solution. If your PBX is not SIP capable, we have a range of SIP gateway products to allow you to connect to our SIP trunks.