The Provision of Public Switched Telephone Network (PSTN) and the Integrated Services Digital Network (ISDN) and related services

This request constitutes a continuation waiver following the original waiver approved in 2024 for £50,000. As the approved value has now been fully utilised, a further waiver is required to ensure the ongoing provision of the service. The Public Switched Telephone Network (PSTN) and the Integrated Services Digital Network (ISDN) will be switched off by 31st January 2027 with UK telecom industry upgrading landline services to new digital technology such as Voice over Internet Protocol (VoIP), Digital Voice or Intern...