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ISDN replacement

ISDN is being withdrawn. There are two BT Cloud Voice routes off it.

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Option 1: hosted BT Cloud Voice

Replace the phone system and ISDN together with BT Cloud Voice. No on-site phone system to maintain.

Option 2: BT Cloud Voice SIP

Keep your current phone system and swap ISDN for BT Cloud Voice SIP.

Either way

We port your numbers, check your connection and schedule the switch-over out of hours where possible.

Why buy BT Cloud Voice from Forever Communications Limited

Forever Communications Limited is part of Forever Group and a member of the BT Business Partner channel. We supply, set up and support BT Cloud Voice for UK businesses, schools, charities and public sector organisations.

  • A named partner who plans your numbers, call flows and handsets with you
  • Number porting managed for you, timed to avoid downtime
  • Connectivity checked first, so call quality is right from day one, with BT business broadband and BTnet available if you need it
  • Ongoing support for moves, adds, changes and faults

BT Cloud Voice is a business service. We do not sell consumer or home phone products.

Want a BT Cloud Voice quote for your team?

Tell Forever Communications what you need and we will come back to you with options, not a hard sell.

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Frequently asked questions

When does ISDN stop?

ISDN is being withdrawn as part of the PSTN switch-off, planned to complete in January 2027.

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