---
title: "Provision of a TETRA/ MCX Interworking Gateway Solution for the Emergency Services Network (ESN)"
ocid: "ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "HOME OFFICE"
published: "2025-11-14"
---

# Provision of a TETRA/ MCX Interworking Gateway Solution for the Emergency Services Network (ESN)

Buyer: HOME OFFICE  
Current stage: Award  
OCID: ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588.json)

## Summary

The Home Office has recently completed the procurement process for a contract entitled "Provision of a TETRA/ MCX Interworking Gateway Solution for the Emergency Services Network (ESN)". The procurement involved the development of platform interconnectivity software services, specifically designed to support the transition of approximately 300,000 users across 107 organisations from Airwave to the ESN. This project is supported by Etherstack Wireless Limited, the chosen supplier, and covers multiple regions including the UK, Channel Islands, and other global locations. The procurement process followed a competitive procedure with negotiation above the threshold, concluding with an award on 16th October 2025, and the contract will be effective until 15th October 2030.

This tender represents significant growth opportunities for technology firms specialising in software development, particularly those focused on telecom solutions and network integration services. Firms capable of providing robust support and maintenance for complex interworking services, as well as those experienced in negotiating competitive procurement processes, would find themselves well-positioned to leverage such contracts for business expansion. The collaboration with a major governmental body like the Home Office further emphasises the potential for enhancing industry credentials and building relationships within the public sector.

## Notice

This Award Notice relates to the Award of a contract for a TETRA/ MCX Interworking Gateway (IWG) solution to be provided to the Emergency Services Mobile Communications Programme (ESMCP). The supplier will provide this IWG to support the transition from Airwave to ESN for approximately 300,000 users across 107 User Organisations. The IWG will link together Airwave talk groups to their equivalent new ESN talk groups, allowing migrated ESN users to make Group and Emergency Calls to, and receive Group and Emergency Calls from, unmigrated Airwave users. The Authority is seeking to procure a Network Interworking Service to support the transition from Airwave to ESN for approximately 300,000 users across 107 User Organisations. The Network Interworking Service will use an Interworking Gateway (the subject of this procurement) to link together the 6000 busiest Airwave talk groups to their equivalent new ESN talk groups, allowing migrated ESN users to make Group and Emergency Calls to, and receive Group and Emergency Calls from, unmigrated Airwave users. The Interworking Gateway is assumed to be a software product that can be deployed onto physical or virtual servers provided and hosted by the ESN User Services Supplier, who will also be responsible for service integration, first line and second line maintenance, with the Interworking Gateway supplier responsible for third line support. The type of interface to be used between Airwave and the Interworking Gateway will be DCS, (Motorola DIMETRA(tm) Dispatch Communications Server), because this is the only interface available on the Airwave radio service. This is the same interface as used for standard control room system connections that provide service to over 4000 control room ICCS (Integrated Communications Control System) desks. A quantity of 600 active DCS ports (plus an extra 300 ports for resilience) will be assigned to the Interworking Gateway, serviced by three Airwave DCS data centres.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/13ced6a4-1597-4ab0-bd21-d7ce547a53ed |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Competitive procedure with negotiation (above threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 14 Nov 2025 |
| Submission deadline | 19 May 2025 |
| Future notice date | Not specified |
| Award date | 15 Oct 2025 |
| Contract period | 15 Oct 2025 - 15 Oct 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £14,246,433 |
| Lots value | Not specified |
| Awards value | £14,246,433 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | HOME OFFICE |
| Locality | STRATFORD, LONDON |
| Post town | East London |
| Postcode | E20 1JN |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI41 Hackney and Newham |
| Local authority | Newham |
| Electoral ward | Stratford Olympic Park |
| Westminster constituency | Stratford and Bow |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | ETHERSTACK WIRELESS |

## CPV Codes

### Divisions

- 72 - IT services: consulting, software development, Internet and support

### Codes

- 72212211 - Platform interconnectivity software development services

## Release History

- 14 Nov 2025 at 11:01 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/13ced6a4-1597-4ab0-bd21-d7ce547a53ed

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/13ced6a4-1597-4ab0-bd21-d7ce547a53ed
  14th November 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/60edbf3b-522b-4710-9883-48aaeacbb290
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/33fc6bd3-244a-4890-975c-23888f6a475e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/9b436056-b9f8-46c9-8014-58c4a31608ed
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/d27f4b0e-9573-4ee4-aee9-95caa42f427b
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/e5e54f62-4e1b-41b8-903f-c6c82c81bb94
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/1aa5f89d-6a7d-4ddc-9b59-7dea707592eb
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/05d6dfa9-ba74-4705-bdaa-a8e23e195b0c
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/34216c20-415c-4115-b5dd-fffd659a70bb
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/3c111f2b-7855-4439-89fe-6716c65f81f5
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/4aee55ef-8e5f-4e36-bde7-c8a66bf220e3
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/dca2cdb1-832b-4956-a6fc-f2952542ff73
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/71ba3104-d23e-449b-bf46-2f16eca8399d
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/eba60c37-20c4-4b60-aa2f-4343801bc55f
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/1eb24f99-4e82-46f1-ad43-a4c956128367
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/6197c2bc-3121-4c5a-87d8-ec3c18698874
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/fa27eb57-8b24-431e-8a8e-9f6b7edec30e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/86267800-aad6-419a-bb60-daa61bfd284e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/1af2eff1-a21b-4834-b30a-b7ab304df9cb
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/b16de08e-9a26-4435-8b9b-e02b78705635
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/50a990b4-bcc4-4463-8868-3a8999a4f80e
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/0553a2ec-c8e6-40a0-a6c1-d4917772a719
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/0637fb2c-f94b-47da-9a9a-dbeaafecf7c1
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/7e5be51a-642d-422a-a67c-26e21a90e0ee
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/ecd5ea5c-d8eb-4266-b4f2-0f5363d844c0
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/4124d54f-e8c5-4912-8f9a-5db515f44b58
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/a292e763-74ee-472e-ad31-5da46b8bbaf0
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/6b9bdbcb-c3d5-4111-8e81-f3ed3ec91f92
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/0ea4ab06-8ada-4610-b604-4cc72b4600cb
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/bc36e8ff-82e5-4deb-b64c-0c2051e9a048
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/c82382f4-ce29-47d7-92dc-07b6686f6491
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/9eadc989-a477-41f4-9c7a-a67a53b0df8f
  n/a
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/43ee2ac9-190d-4873-904f-d356314b5d37
  n/a

## 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-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-e854579a-6f0b-47c2-9e66-b5a93b711588.json.