PBX Tenders and Contracts
See open PBX tenders and awarded contracts for the UK public sector.
1,433 results
- Awarded contractPublished 2 November 2026
SIP Network Provider
£250,000
- Awarded contractPublished 30 October 2026
Provision of Mitel Hardware, Software Licence, Support and Maintenance
Value not stated
- Awarded contractPublished 29 October 2026
TELEPHONY MODERNISATION SUBSCRIPTION RENEWAL
£999,981.06
- Awarded contractPublished 20 October 2026
Opus Telecoms maintenance contract
£143,342.35
- Awarded contractPublished 15 October 2026
ID 6564562 DoJ - Northern Ireland Prison Service - Prisoner Telephone System
£6,480,000
- Open tenderPublished 15 October 2026
Fixed Line and VOIP Services
€1,500,000
- Awarded contractPublished 15 October 2026
DS559-26 Telephony Support
£60,011.31
- Awarded contractPublished 14 October 2026
CPU 8336 Consultancy services for Microsoft Teams Phone System
£67,600
- Awarded contractPublished 1 October 2026
Telephony Maintenance and Support Renewal - Mitel
£73,721.39
- Open tenderPublished 29 September 2026
AI Overlay for the Existing Avaya Elite Telephony Platform
Value not stated
- Stale Pre-tenderPublished 29 September 2026
AI Overlay for the Existing Avaya Elite Telephony Platform
£200,000
- Awarded contractPublished 25 September 2026
SIP Trunks
Value not stated
- Awarded contractPublished 18 September 2026
ESCC-Lansdowne Dect phone replacement
£212,785.2
- Stale Pre-tenderPublished 18 September 2026
Avaya Aura Contact Centre System Replacement
Value not stated
- Awarded contractPublished 7 September 2026
SIP Trunks
34,647.46
- Closed tenderPublished 4 September 2026
Provision of Microsoft Teams Voice (One Teams Voice) Service
€462,000
- Awarded contractPublished 4 September 2026
Installation & Maintenance of Network Cabling and Related Services
£657,260
- Awarded contractPublished 1 September 2026
Mitel Estate Maintenance & Support
Value not stated
- Awarded contractPublished 28 August 2026
Telephony services
£255,603.92
- Closed tenderPublished 20 August 2026
Filton Town Council Leisure Operator Contract
£9,299,457
Frequently asked questions
Frequently asked questions about pbx, pabx, telephone system, phone system, SIP trunk, Mitel, Avaya, telephony maintenance, hosted telephony, DECT, ISDN in the UK public sector.
What does a PBX contract usually cover?
PBX contracts take three broad shapes. Replacement, where a legacy on-premise exchange is swapped for a hosted or cloud platform. Maintenance and support, often a multi-year contract tied to one vendor's switch. And equipment supply, handsets and line cards for an estate that is staying where it is. Framework call-offs for unified communications frequently carry PBX scope as a lot, so the framework notices repay reading in full.
Where are PBX contracts advertised?
Stotles brings together PBX tenders and contracts from 100+ portals into one search, so you do not have to check each portal separately, and you can set alerts for new opportunities across the UK and Ireland.
If you want to search the government portals directly, Find a Tender carries higher-value contracts across the UK and Contracts Finder carries lower-value contracts in England. Public Contracts Scotland, Sell2Wales and eTendersNI cover Scotland, Wales and Northern Ireland, Ireland's eTenders covers Irish public bodies, and many councils, NHS bodies and housing associations publish on their own e-tendering portals such as ProContract. PBX replacements often arrive as lots inside wider telephony and unified communications frameworks, and support contracts are usually tied to the make of the installed exchange.
What do you need to bid for PBX contracts?
Telephony suppliers must meet Ofcom rules on emergency call access, and call recording must handle data in line with UK data protection law. Tenders usually set minimum insurance cover, check financial standing and ask for evidence of similar contracts at selection stage. Under the Procurement Act 2023, suppliers can be excluded for certain criminal convictions, insolvency or failure to pay tax.
How is PBX work bought, and who buys it?
Support contracts are often tied to the make of the installed exchange, and replacements frequently arrive as lots inside wider telephony and unified communications frameworks. Councils, universities, police and fire and rescue services, NHS bodies and central government departments all tender for PBX.
How do I find PBX contracts before they are formally tendered?
Read digital and technology strategies, licence and contract renewal dates, architecture reviews and early market engagement notices, which show PBX work coming due ahead of a notice. On Stotles you can track those signals and the buyers behind them, then follow a notice from pre-tender through to award.
What CPV codes cover PBX procurement?
PBX notices carry 32540000 (Switchboards), 32524000 (Telecommunications system) and 50330000 (Maintenance services of telecommunications equipment).
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