Emergency Communication Systems
Reliable Help Point systems for critical infrastructure environments – engineered for over 25 years of operational delivery.







Accreditations & Certifications






What is a Help Point?

TDM’s Help Point systems are dedicated emergency communication terminals, hardened, weatherproof units that give members of the public or site personnel immediate, reliable two-way voice contact with a control centre or security desk. When something goes wrong, there is no margin for a missed call, a dropped connection, or a system that fails in cold or wet conditions.
Fortunately, TDM’s Help Point solutions are designed to perform in exactly those conditions. Every unit we supply and install features ruggedised housings, crystal-clear audio quality, and direct connectivity to control rooms as standard. Whether the location is exposed and outdoor or a high-footfall public area, each system is engineered to remain operational across the full range of environmental challenges a critical site can present.
Since 2000, we have been supplying, installing, commissioning, and maintaining Help Point systems for infrastructure operators across the UK. Because of this long-standing experience, many of our customers consider our Help Point systems synonymous with reliability. That trust has been earned through consistent delivery over the long term, not simply claimed.
What we deliver
From initial design and specification through to long-term maintenance, TDM manages every stage of your Help Point systems deployment. Unlike a supply-only partner, we take ownership of the full solution and stand behind it for the life of the system. As a result, our customers have a single point of accountability throughout, from the first site survey to ongoing maintenance years down the line.
Site-specific system design accounting for environmental conditions, coverage requirements, cable routing, and integration with existing control room infrastructure. Full technical documentation produced for every deployment.
NICEIC-certified installation by experienced engineers. We manage all aspects of physical installation including civil works, cable containment, and equipment mounting, compliant with the relevant standards for your environment.
Every system is subject to full end-to-end commissioning before handover. Documented testing covers audio quality, connectivity, emergency call routing, and control room integration. Only once the system meets defined acceptance criteria is it signed off and handed over to the customer.
Harsh environments demand hardware that can keep up. For this reason, all Help Point units specified and installed by TDM feature vandal-resistant housings, wide operating temperature ranges, and IP-rated enclosures. Performance in exposed outdoor and high-traffic locations is guaranteed, not assumed.
Planned preventive maintenance, reactive call-out, and system health monitoring. TDM’s long-term maintenance relationships, some spanning 18 years or more, are a direct result of the reliability our customers experience.
Seamless connectivity to existing control centres, security desks, or third-party management platforms. Whether your infrastructure uses legacy analogue or modern IP-based networks, we design around your operational setup.
Why TDM
What Sets TDM Apart
Since 2000, TDM has been delivering Help Point systems. Rather than a diversified portfolio claim, this represents two and a half decades of accumulated knowledge about what works in live operational environments. As a result, we understand what fails, and we design systems accordingly.
Many of TDM’s customer relationships span a decade or more, and we are still maintaining systems we first commissioned years ago. Because of this continuity, our engineers understand a site’s history, its quirks, and its infrastructure in a way that a new contractor simply cannot. For our customers, that depth of knowledge is a significant operational advantage.
We are RISQS approved, NICEIC certified, and hold ISO 9001 and ISO 45001 accreditations. Consequently, we carry the certifications required to work in the most demanding regulated environments. Furthermore, our safety management systems have been independently verified, so you do not have to take our word for it.
Unlike many providers, we do not hand off to subcontractors at the installation stage. Instead, our own engineers design, install, commission, and maintain every system we supply. As a result, there is a single point of accountability throughout, and a team that genuinely understands every system they are responsible for.
With ISO 27001 certification, we apply information security principles to the infrastructure we deploy. In an era of increasing cyber risk to critical systems, this matters significantly, particularly for operators subject to NIS regulations or sector-specific security requirements. Therefore, security is built in from the start rather than added as an afterthought.
Where we work
Help Points are deployed wherever reliable emergency communication is a safety requirement. TDM’s experience spans a wide range of operating environments, each presenting unique installation and operational challenges that our teams are equipped to handle.
Stations, platforms, and interchange facilities where public safety and rapid emergency response are paramount. TDM operates under RISQS approval for safety-critical rail environments.
Exposed coastal environments, cargo handling areas, and public-facing terminal facilities requiring salt-resistant, weatherproof communication infrastructure.
Production facilities and logistics environments requiring durable, clearly accessible emergency communication points across large operational footprints.
Power generation sites, substations, and distribution infrastructure where personnel safety and rapid incident reporting are critical operational requirements.
High-security installations where system reliability, physical resilience, and integration with command and control systems are non-negotiable.
Large campus environments where clear wayfinding to emergency communication points supports duty of care obligations for staff and the public.
Refineries, processing plants, and distribution networks operating under strict safety standards, requiring certified equipment and rigorous compliance documentation.
Multi-storey and surface car parks, pedestrian underpasses, and public areas where Help Points provide a visible, accessible safety presence.
Our Five-Stage Delivery Process
Every Help Point project follows TDM’s five-stage delivery framework. Whether we are installing a single unit or managing a multi-site programme, the same rigour applies at each stage. This is because what happens during planning and design is ultimately what guarantees the outcome on site.
Site survey, requirements gathering, and operational context review. We understand your environment before we design anything.
Tailored system design with full documentation, equipment specification, cable routing, integration requirements, and compliance considerations.
Managed installation by TDM’s own certified engineers, coordinated around your operational requirements to minimise disruption.
Full testing and sign-off against agreed acceptance criteria. Control room integration verified. O&M documentation provided.
Planned maintenance, reactive support, and system upgrades as your infrastructure evolves. Long-term relationships are how we work best.
Proven in the Field
TDM has maintained Help Point systems for major infrastructure operators over periods spanning a decade or more. These relationships are built on consistent delivery, deep system knowledge, and a maintenance service that keeps critical communication infrastructure operational around the clock.

TDM delivered a full network-wide Help Point systems renewal for South Western Railway, installing 395 new units across every station on the SWR estate, completed on time and one month ahead of the DfT Business Plan Commitment deadline.

TDM managed a network-wide Help Point technology upgrade for SE Trains, replacing ISDN units with 4G across the full SETL estate ahead of the BT analogue switch-off, while standardising components and upgrading the NIS call management system.

TDM delivered a full SISS installation at Ivybridge Station for Great Western Railway, upgrading CCTV coverage, CIS displays and Help Points across both platforms. The project required complete ES4 and ES5 designs, new fibre and cabinet infrastructure, and a fully managed installation within a live station environment.