Telephony Services
NATIONAL ENERGY SYSTEM OPERATOR LIMITED. Combined from multiple notices.
- Stage
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Awardthe latest stage the buyer has published
- Buyer
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NATIONAL ENERGY SYSTEM OPERATOR LIMITED
- Value
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Not published
- Awarded
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4 Feb 2026the signed contract date on the notice
- End date
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Not publishedNot published. This contract is not in Renewals.
- First published
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4 Apr 2025last seen 10 Mar 2026
What the buyer published
Provision of a fully managed Microsoft Teams Direct Routing telephony service for National Energy System Operator (NESO), including solution design, deployment, migration, hosted session border controllers (SBCs), site survivability via SBAs, PSTN connectivity, analogue gateway replacement, IP handsets, monitoring, incident management, service desk, configuration and asset management, governance reporting, security and data‑protection compliance, and full exit support. The Supplier delivers end‑to‑end transition, operational service management and ongoing support for the telephony estate for the duration of the contract.
The buyer published this contract more than once.
We combine all notices into one record, so it only appears here once.
| Notice | Published | Type | Stage |
|---|---|---|---|
| 012947-2025 | 4 Apr 2025 | award | |
| 015175-2025 | 15 Apr 2025 | award | |
| 015242-2025 | 15 Apr 2025 | award | |
| 038031-2025 | 7 Jul 2025 | award | |
| 038034-2025 | 7 Jul 2025 | award | |
| 049571-2025 | 18 Aug 2025 | award | |
| 021577-2026 | 10 Mar 2026 | award |