Source: https://tendernation.io/opportunities/01a13bc6-5774-7193-9a8f-6284b3c20274/asi-security-intruder-and-panic-alarm-upgrade-to-facilitate-pstn-changes awarded GB open procedure # ASI Security. Intruder and panic alarm upgrade to facilitate PSTN changes [Derbyshire County Council](https://tendernation.io/buyers/derbyshire-county-council) Estimated value Not stated Published 23 Oct 2025 Deadline Rolling deadline ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender Derbyshire County Council (DCC) use ASI Security Systems to maintain and monitor intruder & panic alarm systems across a multitude of properties. Many of these sites use two paths for delivering alarm signals to the Alarm Receiving Centre. The primary path is a multi-network WorldSIM and the backup path uses analogue telephone lines also known as the UK's Public Switched Telephone Network (PSTN). This system is to be decommissioned by Openreach by July 31st 2025. Due to the challenges ahead with the PSTN switch off, the current signalling units need to be replaced to ensure the built-in system redundancy remains operational. Our properties require new alarm lines to be installed to facilitate the removal of traditional PTSN lines. Without new lines these properties will be at a heightened risk, and will not be able to provide a secondary method of communication to monitoring centres which is an insurance requirement. Source Find a Tender (UK) · Notice ocds-h6vhtk-05d29b-2025-10-23T14:51:44+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05d29b-2025-10-23T14:51:44+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Derbyshire County Council: past awards and live tenders](https://tendernation.io/buyers/derbyshire-county-council) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Engineering works and construction works – Integrated Partnerships Framework · Northern Ireland Water · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-7b9a-73c9-b710-2a5021d3fa0d/united-kingdom-engineering-works-and-construction-works-integrated-partnersh) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment) [Design, supply, and Installation of Newbiggin Skatepark Extension · Newbiggin Town Council · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15552-19a2-7348-a5cc-3f5ae51ef934/design-supply-and-installation-of-newbiggin-skatepark-extension) [Tender for the design, supply, delivery and installation of a modular UNIT and associated works at ARC healthy living, irvinestown. peaceplus funded upgrade works · Fermanagh and Omagh District Council · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a15552-1b74-73ec-a6f6-a1af37959997/tender-for-the-design-supply-delivery-and-installation-of-a-modular-unit-and-a) [Architectural, design and building consultancy services - Dalby Visitor Centre · Forestry Commission · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15552-1b8a-7041-80fb-e4943876fc38/architectural-design-and-building-consultancy-services-dalby-visitor-centre)