The cost-effective and flexible alternative to ISDN, providing flexibility and business continuity
SIP trunking is rapidly replacing ISDN services and Pinnacle is one the UK’s leading SIP trunks providers.
Our SIP trunks connect your site directly into the Pinnacle network via an IP connection to carry and terminate your inbound and outbound voice calls across the public telephone network.
Pinnacle SIP Trunks provide a highly-flexible alternative to ISDN and are compatible with all the leading IP Phone System brands in the UK market, giving you peace of mind that
your Phone System hardware works with the network service.
Compared to ISDN, Pinnacle SIP Trunks are cheaper on a per-channel basis and more flexible in terms of what telephone numbers you can have and the locations in
which you can have them. In addition, they are quicker to install and offer a robust business continuity service that ensures your business never loses any calls.
Our service can support connections ranging from two channels for businesses with small Phone Systems, with no limit on the number of channels that can be supported for large enterprises and contact centres.
Pinnacle SIP Trunks and your Phone System
Pinnacle SIP Trunks have been conformance tested with all of the UK’s IP PBX manufacturers.
Here are just some of the IP Phone Sysetms and SIP Gateway vendors we work with: