Retirement of ISDN Telephony set for 2025 – The solution

We know that it may feel like you're facing a challenge with the retirement of ISDN set for 2025 and we understand that some might not be ready to completely replace their on-premises equipment.

With ITP’s ISDN to SIP service we can now provide SIP with your existing PBX, and, when you’re ready to make the change,  we simply uplift you to hosted users and even support mixed SIP and hosted seat environments at the click of a button.

Why now is the time to consider SIP Trunking?




BT released a statement is 2015 saying that it would stop taking new ISDN orders in 2020 and that it would be deactivating its ISDN network completely in 2025.

There are still millions of people using a traditional ISDN phone system to run their buisness. As of 2025 this network will be shut down and you will lose your service unless you proactively do something about it beforehand.

ITP are able to use a SIP converter to replace the need for your ISDN service while preserving your current phone system. Please fill out the contact form below so we can get back to you with some more information.

Please fill out the conact form below for more information