Voice over Internet Protocol
Commons · Question 5481 · Tabled 1 Jun 2026 · Department for Science, Innovation and Technology · Official record
Answered 4 Jun 2026
Question
Asked by Vikki Slade
To ask the Secretary of State for Science, Innovation and Technology, what data her Department holds the percentage of landline telephone connections that have been migrated from the Public Switched Telephone Network to digital voice services.
Answer
Answered by Kanishka Narayan, 4 Jun 2026
The analogue Public Switched Telephone Network (PSTN) is a privately-owned telecoms network and the decision to upgrade it to digital Voice over Internet Protocol (VoIP) was taken by the telecoms industry in 2017.Over 92% of PSTN landlines have already be...