Planned telephone system upgrade on 27 March: temporary service downtime Last updated: Thursday, 21 March 2024 We're making improvements to our telephone system on Wednesday 27 March 2024, 2am to 3am. During this time, there will be a planned telephone outage. This upgrade will impact Guy’s hospital, St Thomas’ hospital, Evelina London Children’s Hospital, and our acute community sites. If you need to reach us during this period, please call 020 7188 7188. We apologise for any inconvenience this may cause. Thank you for your understanding. Print this page Contact us Media enquiries Phone: 020 7188 5577 Email: press@gstt.nhs.uk Other latest news Chief Executive of NHS Confederation visits Evelina London Children's Hospital Friday, 27 June 2025 Award-winning projects are improving care for children, young people and women Monday, 23 June 2025 King’s Birthday Honours for Guy’s and St Thomas’ staff Saturday, 14 June 2025 See all news