COMMUNICATIONS
By approaching communication resilience as an engineering challenge, estates teams can apply the same structured thinking used in other areas of infrastructure management.
James Bushell
James Bushell is head of product at Critico, with over 25 years’ experience in telecommunications and technology. He has held senior product leadership roles across various established and start up organisations, with responsibility for product strategy, go- to-market, and product development. His focus is on developing reliable communication systems that support critical services and deliver tangible value to the organisations he works with.
A useful starting point is to view communication systems
in the same way as other critical infrastructure components within a hospital estate. Electrical distribution systems, for example, are routinely designed with redundancy, backup generation, and failover capability. Similar thinking can be applied to communication architecture. The first step is to identify how operational alerts are
generated and transmitted across the organisation. Mapping these alert pathways helps estates teams understand where dependencies exist. In some cases, alerts may rely heavily on a single communications network. In others, the alerting platform itself may depend on a single server or network route. Even where multiple communication tools exist across the organisation, they may still rely on the same underlying infrastructure. Understanding these dependencies is essential for identifying single points of failure.
Healthcare estates continue to digitise operational systems.
Identifying vulnerabilities The next step is to evaluate how communication systems perform during abnormal operating conditions. Estates teams may consider scenarios such as network outages, cyber security incidents, infrastructure maintenance or loss of mobile coverage. By reviewing how alerts would be delivered during these situations, organisations can identify areas where resilience may need to be strengthened. Coverage is another important consideration. Staff responsible for responding to operational incidents often work in areas where communication infrastructure is most challenging, including plant rooms, engineering corridors, rooftop equipment areas and basement levels. Conducting signal coverage checks across these areas can help determine whether alerts can reliably reach the personnel who need to receive them. Once vulnerabilities have been identified, estates teams can begin to implement mitigation strategies. In many cases, improving resilience does not require replacing existing systems. Instead, resilience can often be enhanced by introducing additional delivery pathways or
ensuring that alerting systems can operate independently of single network dependencies. Layering communication channels allows organisations to create redundancy similar to that used in other areas of infrastructure design. If one communication pathway becomes unavailable, alerts can still be delivered through alternative routes. Importantly, communication resilience should not be viewed solely as a technology challenge. It is also an operational design consideration. Clear escalation procedures, defined communication protocols and well- practised incident response plans all contribute to ensuring that messages reach the right people quickly. Regular testing of communication systems is also essential. Just as backup generators and emergency power systems are routinely tested, communication infrastructure should be regularly validated to ensure it performs as expected during operational incidents. By adopting a structured and engineering-led
approach to communication resilience, healthcare estates teams can significantly reduce the risk that critical alerts fail to reach operational staff during incidents.
Conclusion Hospitals have long recognised the importance of designing resilient infrastructure. Redundancy, backup systems, and failover mechanisms are standard practice for critical services such as power, water, and medical gases, ensuring that essential functions can continue even when individual components fail. Communication systems should be treated with the same level of attention. As healthcare estates become increasingly complex and digitally connected, reliable communication plays a central role in maintaining safe operations. Estates teams, facilities staff, security personnel and clinical teams all rely on timely alerts to respond effectively to incidents across the hospital environment. When communication systems fail or experience delays, the ability to coordinate these responses can be significantly affected. By identifying and eliminating single points of failure within communication infrastructure, healthcare organisations can strengthen their overall operational resilience. Implementing layered communication pathways, ensuring robust coverage across challenging areas of the estate, and regularly testing communication systems all contribute to ensuring that alerts continue to reach the right people when they are needed most. In modern healthcare estates, resilient communication
infrastructure should be viewed in the same way as resilient power, water, and building services systems. By applying the same structured engineering principles to communication systems, organisations can ensure that critical information continues to flow during incidents, outages and unexpected disruptions. Ultimately, resilient communication systems are not simply operational tools – they are a fundamental component of safe and reliable hospital infrastructure.
70 Health Estate Journal June 2026
AdobeStock / Fabian
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