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 Strike action update Tuesday, 16 December 2025 Her Royal Highness The Princess of Wales invites dedicated Evelina London colleagues to join the ‘Together at Christmas’ carol service Monday, 15 December 2025 Read the latest issue of the GiST Monday, 08 December 2025 See all news