---
title: "Fully managed service for the Public Switched Telephone Network (PSTN) Migration"
ocid: "ocds-h6vhtk-052471"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-052471"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-052471.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-052471.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "LONDON BOROUGH OF LEWISHAM"
published: "2025-05-23"
---

# Fully managed service for the Public Switched Telephone Network (PSTN) Migration

Buyer: LONDON BOROUGH OF LEWISHAM  
Current stage: Award  
OCID: ocds-h6vhtk-052471

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-052471)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-052471.json)

## Summary

The London Borough of Lewisham has completed a procurement process titled "Fully managed service for the Public Switched Telephone Network (PSTN) Migration" necessary due to the upcoming switch-off of PSTN business lines mandated by the UK telecommunications industry by December 2025. The procurement falls under the telecommunications services industry category and was conducted using a direct procurement method below the threshold, without competition. The contract commenced on 13th May 2025 and is set to conclude on 13th February 2026, with the deal valued at £120,000 (gross value £144,000). Lewisham, located in Catford SE6 4RU, is the key buyer involved, ensuring compliance with legislative requirements identified under legal basis 2023/54.

This tender represents a significant opportunity for businesses specialising in telecommunications services, especially those able to provide robust solutions for telephony infrastructure transitions. Segmentation Group Limited emerged as the supplier, indicating a preference for small and medium enterprises that can deliver agile, innovative, and effective solutions within the defined contractual period. The project involves servicing the region identified as UKI44 and requires expertise aligned with evolving industry standards, providing exposure and potential for business growth in technological migration projects.

## Notice

Lewisham Council must transition its telephony infrastructure in response to the UK telecommunications industry's mandated Public Switched Telephone Network (PSTN) switch-off for business lines by December 2025.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/026942-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 23 May 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 12 May 2025 |
| Contract period | 12 May 2025 - 13 Feb 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £120,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LONDON BOROUGH OF LEWISHAM |
| Locality | CATFORD |
| Post town | South East London |
| Postcode | SE6 4RU |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI44 Lewisham and Southwark |
| Local authority | Lewisham |
| Electoral ward | Rushey Green |
| Westminster constituency | Lewisham East |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SEGMENTATION GROUP |

## CPV Codes

### Divisions

- 64 - Postal and telecommunications services

### Codes

- 64200000 - Telecommunications services

## Release History

- 23 May 2025 at 15:28 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/026942-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/026942-2025
  23rd May 2025 - Contract details notice on Find a Tender

## Notice URLs

- http://www.segmentationgroup.com
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-052471. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-052471.json.