Question follow-through · 5481
Voice over Internet Protocol
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.
About this written question
A written question asks a government minister for information in writing. Parliament publishes the question and any answer.
- Answering body
- Department for Science, Innovation and Technology
- Tabled
- 1 Jun 2026
- Target answer date
- 4 Jun 2026
- Answer
- 4 Jun 2026 · 3 calendar days after tabling
Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.
Recorded timeline
1 Jun 2026
Question tabled
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.
4 Jun 2026
Target answer date
Date supplied by the official written-questions record.
4 Jun 2026
Answer published
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...
Official data retrieved 28 Sept 2026.
Later records
Possible follow-up questions
Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.
YouTube: Children
19 Jun 2026 · To ask the Secretary of State for Science, Innovation and Technology, whether age verification will be sought to watch content on YouTube without a registered account as part of the upcoming ban on social media for under 16s.