Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, whether the Government has plans to strengthen the security of the electricity supply in the context of the move from the public switched telephone network (PSTN) to Voice Over Internet Protocol (VoIP) for landline telephones.

Maintaining a resilient and secure energy supply for the UK is a key priority for this Government. The Government continues to work with both the energy and telecommunication industries to understand the implications of the move from the public switched telephone network (PSTN) to Voice Over Internet Protocol (VoIP).