The Big ISDN Switch Off

Sure’s latest technology investment is in enhancing our voice and data services, specifically offering Sure Guernsey customers fibre to every premise and the launch of new cloud-based voice services. This means that legacy services such as ISDN will be retired from our portfolio and we will be removing ISDN services from sale effective from 30th June 2024. As part of the deployment of these new enhanced services, we have a goal of migrating all ISDN customers by the end of 2025.

Why migrate from ISDN to Fibre services?

Cloud voice, SIP trunks, and ISDN emulation are not just a replacement for ISDN. They are a significant upgrade.

• Highly resilient
• High speed connectivity
• Improved cost efficiency
• Seamless integration with other products
• Upgradeable features

What are the next steps? 

We recommend a thorough audit of your network to determine how many ISDN connections you have and of what type. Whatever affected services you have, there are several easy migration paths to ensure that your business is uninterrupted.

The complete closure will happen in 2026; however, services are gradually being withdrawn from now on, so it is time to plan your migration.

At Sure we're here to help you navigate this transition and reduce your risk as you move to a digital future. Our team of expert consultants are ready to work with you, auditing your existing estate and recommending the most suitable solution based on your unique business requirements.