ISDN Switch OFF
In 2025 BT will switch off the traditional ISDN network and such services will be replaced by more modern and cost-effective solution.
Businesses will now need to start making decisions as to what to do to ensure business continuity. SIP trunking is rapidly replacing ISDN services. SIP trunks offer a more flexible and lower cost alternative to ISDN for inbound and outbound voice calls.
SIP trunks connect your site directly into a SIP providers network via an IP connection to carry and terminate your inbound and outbound voice calls across the public telephone network.
What is SIP Trunking?
SIP trunking is a standards-based replacement for traditional ISDN. It connects your PBX to the PSTN via broadband, ethernet or private circuit into our national network.
Compared to ISDN our SIP trunking service is less costly per channel and more flexible in how and where geographic telephone numbers can be used. It's also quicker to install and provision and, as standard, it delivers extremely robust business continuity.
The service can support connections ranging from two channels for small PBX-equipped businesses to an unlimited number of channels for large enterprises and contact centres.
With our SIP Trunks, you get a service that is more robust and cost-effective than ISDN. Because SIP trunking is an IP-based telephony service, you also get number flexibility, which gives you a whole host of other added benefits that can solve real business issues.
Any business with a PBX can switch to our SIP trunking service and immediately benefit from a more flexible, less expensive and more resilient phone service.
Whatever your current situation is, SIP trunking has an ideal solution to offer your business moving forward.
What is your scenario?
If you are looking to upgrade your current system, it is important to know your options. Take a look at the scenarios below, to evaluate your current business infrastructure and get an idea of which solution is best for your company, Each scenario will explain how your business can make the move to SIP.