---
title: "DA from NHS Link: IT Solutions 2 FW for Gamma SIP Trunk Service for Corporate Telephony 2026-2029"
ocid: "ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "STOCKTON-ON-TEES BOROUGH COUNCIL"
published: "2026-04-27"
---

# DA from NHS Link: IT Solutions 2 FW for Gamma SIP Trunk Service for Corporate Telephony 2026-2029

Buyer: STOCKTON-ON-TEES BOROUGH COUNCIL  
Current stage: Award  
OCID: ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9

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## Summary

The public procurement process titled "DA from NHS Link: IT Solutions 2 FW for Gamma SIP Trunk Service for Corporate Telephony 2026-2029" involves Stockton-on-Tees Borough Council as the buying organisation. The contract provides information technology services in the North East of the United Kingdom. The process has reached the 'Award' stage as of 27 April 2026, with Cisilion Limited being awarded the contract valued at £114,879.08 GBP. This selective procurement was executed through a call-off from a framework agreement, aiming to commence service provision on 1 July 2026 and concluding on 30 June 2029. The procurement method does not prioritise SME or VCSE suitability and focuses primarily on service delivery.

This tender presents significant opportunities for businesses specialising in information technology services, particularly those with expertise in SIP trunk telephony solutions and cloud integrations within the public sector. Larger organisations with a proven track record of providing resilient and secure IT solutions would be well-suited to compete in similar procurement processes. This contract underscores the importance of reliability and resilience, which are critical factors for the councils involved, suggesting potential for continued collaboration and expansion into other areas of technological support and service enhancement.

## Notice

Stockton and Darlington councils currently have a contract with Cisilion to provide a resilient SIP service to Xentrall Landing zone in Azure cloud of use by both. This SIP service carries all incoming and outgoing external calls for the councils and terminates on resilient Ribbon Session Border Controllers that route calls to Teams Voice in Azure or the on-premises Netcall CRM's used by both council's Customer services departments. These Ribbons servers are provided and supported by Cisilion in a separate contract. This contract also includes the provision of the current DDI extension number ranges e.g. 01642 52xxxx for Stockton. This DDI number provision also includes the Stockton "Gold Number" ranges which the council have had since the 80's. Cisilion were essential with the migration to Gamma SIP as part of the previous contract and we have been happy with that support and the help they have provided since then.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/0d3f6cd7-cdb1-4e51-8481-381ab9694e3b |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 Apr 2026 |
| Submission deadline | 26 Apr 2026 |
| Future notice date | Not specified |
| Award date | 26 Apr 2026 |
| Contract period | 30 Jun 2026 - 30 Jun 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £114,879 |
| Lots value | Not specified |
| Awards value | £114,879 |
| 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 | STOCKTON-ON-TEES BOROUGH COUNCIL |
| Locality | STOCKTON-ON-TEES |
| Post town | Cleveland |
| Postcode | TS17 6BJ |
| Country | England |
| ITL 1 | TLC North East (England) |
| ITL 2 | TLC3 Tees Valley |
| ITL 3 | TLC31 Hartlepool and Stockton-on-Tees |
| Local authority | Stockton-on-Tees |
| Electoral ward | Mandale & Victoria |
| Westminster constituency | Middlesbrough and Thornaby East |
| Delivery location | TLC North East (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CISILION |

## CPV Codes

### Divisions

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

### Codes

- 72222300 - Information technology services

## Release History

- 27 Apr 2026 at 15:21 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/0d3f6cd7-cdb1-4e51-8481-381ab9694e3b

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/0d3f6cd7-cdb1-4e51-8481-381ab9694e3b
  27th April 2026 - Awarded contract notice on Contracts Finder

## 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-ae54d51a-53d1-4b15-b895-71a35165ece9. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-ae54d51a-53d1-4b15-b895-71a35165ece9.json.