What’s the impact of the UK PSTN switch-off on Zendesk Talk?

Question

What impact does the retirement of the Public Switched Telephone Network (PSTN) have on Zendesk Talk?

Answer

The UK is retiring its legacy copper telephone network (the PSTN) by 31 January 2027. This is an industry-led change run by BT Openreach, supported by the UK government and supervised by Ofcom.

Zendesk Talk itself is not affected: Talk is delivered over IP, so calls don't depend on the PSTN, and UK phone numbers continue to work after the switch-off.

If you use on-premise telephony, legacy UK landlines, or PSTN-based forwarding alongside Talk, then you should confirm your migration plan with your telecom provider ahead of the 2027 deadline.

For additional information, see this Ofcom article: Moving landline phones to digital technology.