SIP Trunks

A cost-effective and flexible alternative to ISDN


SIP trunks are a highly flexible alternative and use an Internet connection instead of a normal phone line. They connect your site to the public switched telephone network (PSTN) to carry and terminate your inbound and outbound voices calls.

Compared to ISDN lines, SIP trunks are cheaper on a per channel basis and more flexible in terms of what numbers you can have, quantity of those numbers and where geographically you can locate those numbers. They are quicker and easier to install than ISDN lines and provide an excellent business continuity service for Disaster Recovery so your business never loses calls.

SIP Trunks are suitable from the small office and home workers right up to the larger enterprises and contact centres where hundreds of SIP trunk connections are required.

How do I get SIP Trunks?

Simple – just two easy steps.

  1. Take one of our voice optimised broadband circuits which has Quality of Service, or use an existing connection if suitable
  2. Let us know if you want to transfer your existing telephone numbers to SIP or would like new numbers or both!

Contact Us to find out more about our SIP Trunks.

If you are looking for SIP Trunks we currently have an amazing one off special offer, to find out more visit our SIP Trunks Special Offer page!