SIP trunks contracts
UK public sector · 54 contracts awarded in the 12 months to 6 October 2026
Covering 600+ buyer portals · 5 years of records · Updated 6 October 2026 · How we count
- Contracts awarded
- 54
- Last 12 months
- Median contract
- £62k
- Recorded value
- Recorded value
- £6.0m
- 41 of 46 main-service contracts have a published value
- Buyers
- 50
- Suppliers
- 21
11 SIP trunks contracts ending in the next 12 months
See which ones
BidSkim assigns contracts to services from the notice text. How services are assigned
What stands out
- The five suppliers that won the most SIP trunks contracts took 61% of them (33 of 54).
- The median contract, £62k, is 44% below the median across it & software contracts (£110k).
- Royal Berkshire Fire & Rescue Service awarded 4% of the SIP trunks contracts (2 of 54).
Who buys SIP trunks
By contracts awarded, the 12 months to 6 October 2026.
- 1Royal Berkshire Fire & Rescue Service2 contracts£169k
- 2Wychavon District Council2 contracts£138k
- 3UK Research and Innovation (UKRI)2 contracts£49k
- 4NHS Wales Shared Services Partnership2 contracts—
- 5The City of Edinburgh Council1 contract£2.1m
- 6North Yorkshire Council1 contract£554k
- 7NHS Greater Glasgow and Clyde1 contract£505k
- 8South Yorkshire Police1 contract£267k
- 9Norfolk County Council1 contract£256k
- 10West Midlands Ambulance Service University NHS Foundation Trust1 contract£178k
Top SIP trunks contractors by contracts won
The 12 months to 6 October 2026.
- 1BT16 contracts£2.9m
- 2Gamma6 contracts£332k
- 3Wavenet5 contracts£156k
- 4Trustmarque3 contracts£1.2m
- 5Opus Telecoms3 contracts£691k
- 6Virgin Media O23 contracts£370k
- 7Maintel2 contracts£111k
- 8Daisy Communications2 contracts£72k
- 9Vodafone1 contract£178k
- 10FourNet1 contract£144k
Latest and largest awards
Each links to the official notice.
Latest
Hertfordshire Partnership University NHS Foundation Trust to Babble · Awarded 28 September 2026
SIP Trunks (official notice, opens in a new tab)
Value not published
NHS Wales Shared Services Partnership to BT · Awarded 25 September 2026
London Borough of Harrow to Wavenet · Awarded 11 September 2026
Cambridgeshire County Council to Cinos · Awarded 28 August 2026
Norfolk County Council to Trustmarque · Awarded 25 August 2026
London Borough of Havering to Wavenet · Awarded 25 August 2026
Coventry University to FOCUS 4 U LTD. · Awarded 21 August 2026
ORBIT GROUP LIMITED to BT · Awarded 13 August 2026
Financial Conduct Authority to BT · Awarded 13 August 2026
Largest
The City of Edinburgh Council to BT · Awarded 2 December 2025
North Yorkshire Council to Opus Telecoms · Awarded 22 January 2026
NHS Greater Glasgow and Clyde to Trustmarque · Awarded 2 June 2026
South Yorkshire Police to Virgin Media O2 · Awarded 1 December 2025
Contracts awarded by quarter
Where the contracts were awarded
England 45 · Wales 5 · Scotland 4
What is included
Carrier voice connectivity to the public telephone network: SIP trunks, ISDN30 and fixed lines, plus inbound number hosting and call routing.
- SIP trunk provision
- ISDN30 and PSTN lines
- Fixed line telephony
- Inbound call hosting and routing
- Support of SIP and voice circuits
What is not included
- The phone system or cloud telephony platform, including Microsoft Teams calling -> it.tel.telephone-systems-and-unified-comms
- Contact centre software -> it.tel.contact-centre-software
- Mobile airtime -> it.tel.mobile-voice-and-data
- Data circuits between sites -> it.tel.wide-area-network