BT MGST - Private Circuit Emergency Overrun Service (PCEOS) Extension
- Transport for London
Procurement identifier (OCID): ocds-h6vhtk-06e4a0
Description
The contract is for the continued provision of BT's Private Circuit Emergency Overrun Service (PCEOS) supporting the London Overground GSM-R (Global System for Mobile Communications - Railway) network. The service maintains safety-critical telecommunications links used for communications between train drivers, signallers and railway operational control functions. The contract is required to ensure continuity of GSM-R services while Rail for London completes the migration from BT's legacy Megastream platform to a replacement Nokia-based transmission solution. BT is the only supplier capable of providing the service due to its ownership and operation of the Megastream infrastructure.
Notices
UK5: Transparency notice
- Notice identifier
- 2026/S 000-077667
- Published
- 14 August 2026, 12:45pm