Why aren't you migrating my other PSTN or ISDN numbers?
At this time, we are focusing on PSTN lines that appear to be single PSTN lines with no broadband services attached. We plan to address these other numbers in the future.
Can I move to a hosted or cloud VoIP solution?
Yes. If you would prefer to move your number to a cloud or hosted VoIP solution, please let us know, and we will be happy to share available options with you.
What if I have a service that relies on my PSTN, such as a security camera, door opener, fax, etc.?
Please contact support as soon as possible to let us know the details. We will work with you to find an appropriate solution for your situation.
Why is this migration happening?
BT is discontinuing PSTN and ISDN services across the UK due to aging infrastructure and the transition to more reliable digital networks.
As a proactive step, CallStream is migrating PSTN (and later ISDN) customers to a modern solution that will not be affected by the switch-off.
Will I lose my phone number during the migration?
No. You will not lose your existing phone number. The migration is handled at the provider level, and your number will remain the same.
How will the migration impact my business operations?
The migration process is designed to be seamless, with minimal disruption.
You might experience a brief disconnection during the transition, but your phone lines will continue to work as usual.
Do I need to change my phone equipment?
No. You do not need to change your existing phone or equipment.
Your current setup will continue to function after the migration.
What should I do if my PSTN line is connected to other services like alarm systems or broadband?
If your PSTN line supports alarm systems, door entry, fax machines, or broadband, please inform us immediately.
We will work with you to find a suitable alternative and ensure no service disruption.
Will there be any costs associated with the migration?
There are no direct costs associated with the migration itself.
However, if additional services or equipment changes are required for systems that rely on your PSTN line, there may be separate costs.
Our team will discuss any required changes with you beforehand.
What happens if I don't respond to the migration notice?
If we don't hear from you within one week of receiving the migration notice, we will proceed with the migration as planned.
Please ensure you inform us of any critical systems using your PSTN line to avoid unexpected disruptions.
Who do I contact if I have questions or need assistance?
If you have any questions or need assistance, please contact our support team.
We are here to guide you through the transition and ensure your services remain uninterrupted.
Will an engineer need to visit my location to make this change?
No. Engineer access will not be required.
All changes will be performed remotely at the local exchange level.
Matthew Mrosko
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