On-demand webinar

The big PSTN switch off

What does it mean for you?

If you are still weighing the pros and cons of investing in Voice over Internet Protocol (VoIP) or Session Initiation Protocol (SIP) Trunking technology, the time to act is fast approaching. In December 2025, the BT Openreach public switch telephone network (PSTN) will be switched off.
 

Agenda

  • What is the 2025 PSTN switch-off 
  • The impact on organisations 
  • Five-point best practice plan
  •  How you can mitigate the risks of  the PSTN switch-off
  • User cases

During this webinar hosted in partnership with Gamma, Trustmarque’s Voice Network services team will explain how this is an opportunity to streamline operations, drive cost efficiencies, and improve your customer service and engagement.

Watch the PSTN switch off webinar

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Speakers

Howard Laban
Head of Voice Services, Trustmarque
Howard Jackson
Customer Success Manager, Trustmarque
Ioan Thomas
UCaaS Specialist, Gamma
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