IDSN Switch-Off


CSR Digital are specialists in all business telecom services.

Switch-Off deadline looming

ISDN is set to be switched off by BT in January 2027, with no new orders being taken after 2020 as part of a 5-year phase out extended by 2 years.

If your phone does not have a network cable it will not work from 2027. Therefore, you have to go digital using VoIP (Voice over Internet Protocol).

Migrate before the switch off

You need to migrate before the switch off so you don’t lose your number. It’s a simple, straight forward process. You can keep your existing number

How CSR Digital can help

We can walk you through the journey as you move away from ISDN, we can share the benefits of the cloud system which will enable you to work from anywhere. You will be able to benefit from all the advanced features of a modern phone system, opening up new possibilities for how your business can work and operate.

Get in touch and find out how we can help.

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Our IDSN Switch-Off service includes:

The service includes user training, ongoing support, and decommissioning old ISDN lines, ensuring a smooth and compliant transition with minimal disruption.

Number Porting
Temporary Numbers
Migration Services
Upgrading to a PBX or VoIP system

Telecoms Solutions

Whether your business requires a new, cloud based hosted communications solution, business mobile package, mobile internet services or telephone and data calling services we can help.

As well as IDSN Switch-Off services, we also offer:

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Get in Touch Today

Find out how our IDSN Switch-Off service can help your business.

Get in touch with our professional team today.