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Digital Transformation
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Implement digital transformation in incremental stages that also build resilience
Despite pressure from customer expectations and competition from disruptive start-ups, many companies have struggled to manage successive cycles of digital transformation as they attempt to innovate and scale their architectures and services.
To realise a return on your technology investment, your strategy, budget control, project management and change management must be meticulously planned, have full support and work in tandem with each other.
How we help our clients
Our team of experts has decades of experience providing Digital Transformation services to both private and public companies
Test Strategy & Automation
Enhances your digital transition by implementing a framework for systematic software testing processes and integrating automation tools to increase efficiency and reliability.
Digital Transformation as a Service
A flexible and cost-efficient model that supports incremental phases of digital transformation such as cloud computing, data analytics, and user experience improvements.
Microsoft
Our expertise in implementation, customisation, and managed services ensures optimised deployment of Microsoft 365, Dynamics 365, and Azure, enhancing collaboration, security, and data analytics.
Digital Delivery / DevSecOps
We help you create a culture and environment where building, testing, and releasing new products & services can occur rapidly, frequently, and more securely.
Digital Transformation Implementation
We assess workforce resilience and change readiness, paving the way for incremental project stages. This includes the adoption of digital tools, process re-engineering, and change management.
Requirements Management
We ensure clarity and alignment throughout your digital transformation by effectively capturing and prioritising requirements. This helps to minimise risks, enhance collaboration, and streamline project execution.
UX/CX Design Assurance
We use data and AI to elevate user experiences and customer journeys through rigorous testing and validation. Our unique blend of data-driven insights and creative design ensures that every interaction is intuitive, engaging and positive.
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Additional Services
Project Management
We offer flexible, on-demand project management services, integrating AI and human expertise to enhance efficiency, reduce costs, and align projects with strategic objectives for optimal outcomes.
Contact Centre Transformation
We address challenges such as managing contact volumes, understanding customer complaints, and improving agent skills through detailed reporting, root cause analysis, and actionable 'fix plans.'
Change Management
Our Change Management service offers tailored strategies to tackle challenges like stakeholder resistance and ineffective methods, with flexibility to adapt, ensuring alignment, transparency, and continuous improvement.
Digital Infrastructure
We empower organisations to grow by tackling the complexities of digital infrastructure, including 5G, IoT, and generative AI. Our expertise transforms both virtual and physical landscapes, enhancing data centers, carriers, subsea cables and more.
33%
Adoption of GenAI worldwide by businesses
1300%
The average ROI of enterprises using business data & analytics
90%
Of organisations worldwide have implemented cloud technologies
3.5x
Companies with a culture of innovation are 3.5 times more likely to outperform their peers
"Cambridge MC helped the University of Bristol complete a multi-million modern network design & procurement, ensuring that University of Bristol remains the university of choice for student, academics and partners in a globally competitive market."
—University of Bristol Case Study
Our Digital Transformation service is led by David Lewis
Managing Partner - Digital & Innovation
David’s directorial roles have included positions at Trapezo, Sony Music, and the co-founding of One5 Corporation in Romania. After selling One5, David held key positions at M9Global Limited, Tech Mahindra, and Infosys, where he led the largest online transformation in the telecommunications industry for Europe.
In 2012, David became the Practice Head of an Advanced Solutions Group for Cognizant, shaping the company’s first digital transformation group with global influence. In 2017, he joined the UK Cabinet Office as the Director of Delivery and Support and adviser to the Director General of Government Digital Service, before establishing the Chief Digital and Information Officer function in 2019. During this time, he independently reviewed government technology projects.
Since leaving the Cabinet Office, David has contributed to organisations such as the New Lottery Company, Capita, and BetterGov. Additionally, he serves as a Non-Executive Director for SSV Capital Ltd, and is a dedicated Trustee for the Carers Network, in line with his commitment to giving back to society.
Our team can be your team
Our team of experts have multiple decades of experience across many different business environments and across various geographies.
We can build you a specialised team with the skillset and expertise required to meet the demands of your industry.
Our combination of expertise and an intelligent methodology is what realises tangible financial benefits for clients.
Our Digital Transformation Experts
Rachi Weerasinghe
With over 30 years of experience leading international, multi-disciplined, and diverse teams, Rachi is highly experienced in IT and digital strategy, Operating Model design, change management, ERP applications, IT Operations, and data strategy.
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Case Studies
Our team has had the privilege of partnering with a diverse array of clients, from burgeoning startups to FTSE 100
companies. Each case study reflects our commitment to delivering tailored solutions that drive real business results.
CASE STUDIES
A little bit about Cambridge MC
Cambridge Management Consulting is a specialist consultancy drawing on an extensive global network of talent. We are your growth catalyst.
Our purpose is to help our clients make a better impact on the world.
ABOUT CAMBRIDGE MC
“90% of CEOs believe the digital economy will impact their industry, but less than 15% are executing on a digital strategy.”
MIT Sloan and Capgemini
"less than 15% are executing on a digital strategy"
Digital Transformation insights
Since the origins of the quest for artificial intelligence (AI), there has been a debate about what is unique to human intelligence and behaviour and what can be meaningfully replicated by technology. In this article we discuss these arguments and the ramifications of 'ignorance' as it is expressed by current AI models. To what Extent can Artificial Intelligence Match or Surpass Human Intelligence? This article approaches the question of artificial intelligence by posing philosophical questions about the current limitations in AI capabilities and whether they could have significant consequences if we empower those agents with too much responsibility. Two recent podcast series provide useful and comparative insights into both the current progress towards Artificial General Intelligence (AGI) and the important role of ignorance in our own cognitive abilities. The first is Season 3 of 'Google DeepMind: The Podcast”, presented by Hannah Fry, which describes the current state of art in AI. The second is Season 2 of the BBC's 'The Long History of… Ignorance' presented by Rory Stewart, which explores our own philosophical relationship with ignorance. A Celebration of Ignorance Rory Stuart’s podcast is a fascinating exploration of the value that we gain from ignorance. It is based on the thesis that ignorance is not just the absence of intelligence. It feeds humility and is essential to the most creative endeavours that humans have achieved. To ignore ignorance, is to put complex human systems, such as government and society, into peril. The key question we pose is whether or not current AI appreciates its ignorance. That is, can it recognise that it doesn’t know everything. Can AI embrace, respect and correctly recognise its own ignorance: meaning it doesn’t just learn through hindsight but becomes wiser; and is fundamentally influenced, when it makes decisions and offers conclusions, that it is doing so from a position of ignorance. The Rumsfeldian Trinity of Knowns The late Donald Rumsfeld is most popularly remembered for his theory of knowns. He described that there are the things we know we know; things we known we don’t know; and things we don’t know we don’t know. Stewart makes multiple references to this in his podcast. At the time that Rumsfeld made the statement it was widely reported as a blunder—as a statement of the blindingly obvious. Since then, the trinity of knowns has entered the discourse of a variety of fields and is widely quoted and used in epistemological systems and enquiries. Let us take each in turn, and consider how AI treats or understands these statements. Understanding our 'known knowns' is relatively easy. We would suggest that current AI is better than any of us at knowing what it knows We also put forward that 'known unknowns' should be pretty straightforward for AI. If you ask a human a question, and they don't know the answer, it is easy to report this an an unknown. In fact, young children deal with this task without issue. AI should also be able to handle this concept. Both human and artificial intelligence will sometimes make things up when the facts to support an answer aren’t known, but that should not be an insurmountable problem to solve. As Rumsfeld was trying to convey, it is the final category of 'unknown unknowns' that tends to pose a threat. These are missing facts that you cannot easily deduce as missing. This includes situations where you have no reason to believe that 'something' (in Rumsfeld's case, a threat) might exist. It is an area of huge misunderstandings in human logic and reasoning; such as accepting that the world is flat because nobody has yet considered that it might be spherical. It is expecting Isaac Newton to understand the concept of particle physics and the existence of the Higgs boson when he theorises about gravity. Or following one course of action because there was no reason to believe that there might be another available: all evidence in my known universe points to Plan A, so Plan A must be the only viable option. In experiments with ChatGPT, there is good reason to believe that it can be humble; that it recognises it doesn’t know everything. But the models seem far more focused on coping with 'known unknowns' than recognising the existence of 'unknown unknowns'. When asked how it handles unknown unknowns, it explained that it would ask clarifying questions or acknowledge when something is beyond its knowledge. These appear to be techniques for dealing with known unknowns and not unknown unknowns. The More we Learn, the More we Understand How Much we Don’t Know Through early life, in our progression from childhood to adulthood, we are taught that the more you know and understand, the more successful you will be. Not knowing a fact or principle was not something to be proud of, and should be addressed by learning the missing knowledge and followed by learning even more to avoid failure in the future. In education we are encouraged to value knowledge more than anything else. But as we get older, we learn with hindsight from the mistakes we have made from ill-informed decisions. In the process, we become more conscious of how little we actually know. If AI in its current form does not appreciate or respect this fundamental concept of ignorance, then we should ask what flaws might exist in its decision-making and reasoning? The Peril of Hubris To feel that we can understand all aspects of a complex system is hubris. Rory Stewart touches on this from his experience in government. It is a fallacy to believe that we should be able to solve really difficult systemic problems just by understanding more detail and storing more facts about the characteristics of society. As Stewart notes, this leads to brittle, deterministic solutions based on the known facts with only a measure of tolerance for the 'known unknowns'. Their vulnerability to the 'law of unintended consequences' is proven repeatedly when the solution is found fundamentally flawed because of facts that were never, and probably could never be, anticipated. These unknown unknowns might be known elsewhere, but remain out of sight to the person making the decision. Some unknown unknowns might be revealed, by speaking to the right experts or with the right lines of enquiry. However, many things are universally unknown at any moment in time. There are laws of physics today that were unknown unknowns to scientists only few decades previously. The Basis of True Creativity Stewart dedicates an entire episode to ignorance’s contribution to creativity, bringing in the views and testaments of great artists of our time, like Antony Gormley. If creativity is more than the incremental improvement of what has existed before, how can it be possible without being mindful of the expanse of everything you don’t know? This is not a new theory. If you search for “the contribution that ignorance makes to human thinking and creativity” you will find numerous sources that discuss it, with references ranging from Buddhism to Charles Dickens. Stewart describes Gormley’s process of trying to empty his mind of everything in order to set the conditions for creativity. Creativity is vital to more than creating works of art. It is an essential part of complex decision-making. We use metaphors like 'brainstorming or blue sky thinking' to describe the state of opening your mind and not being constrained by bias, preconception or past experience. This is useful, not just to come up with new solutions, but also to 'war game' previously unforeseen scenarios that might present hazards to those solutions. What would you Entrust to a Super-Genius? So, if respecting and appreciating our undefined and unbounded ignorance is vital to making good and responsible decisions as humans, where does this leave AI? Is AI currently able to learn from hindsight – not just learn the corrected fact, but learn from the very act of being wrong? In turn, from this learning, can it be more conscious of its shortcomings when considering things with foresight? Or are we creating an arrogant super-genius unscarred by its mistakes of the past and unable to think outside the box? How will this hubris affect the advice it offers and the decisions it takes? What if we lived in a village where the candidates for leader were a wise, humble elder and a know-it-all? The wise elder had experienced many different situations, including war, famine, joy and happiness; they have improvised solutions to problems that they have faced in the past, and have learnt in the process that a closed mind stifles creativity; they knew the mistakes they had made, and therefore knew their eternal limitations. The village 'genius' was young and highly educated, having been to the finest university in the land. They knew everything ever written in a book, and they were not conscious of making a bad decision. Who would you vote for to be your leader? Conclusion The concepts described here are almost certainly being dealt with by teams at Google DeepMind and the other AI companies. They shouldn’t be insurmountable. The current models may have a degree of caution built into them to damp the more extreme enthusiasm. But I’d argue that caution when making decisions based on what you know is not the same as creatively exploring the 'what if' scenarios in the vast expanse of what you don’t know. We should be cautious of the advice we take from these models and what we empower them to do—until we are satisfied that they are wise and creative as well as intelligent. Some tasks don’t require wisdom or creativity, and we can and should exploit the benefits that these technologies bring in this context. But does it take both qualities to decide which ones do? We leave you with that little circular conundrum to ponder.
It is no exaggeration that telecommunications operators worldwide retain an abundance of ‘legacy’ networks: those using decades-old technologies for which support and maintenance contracts, software updates and hardware parts have already ceased to be available. Legacy networks become increasingly expensive to maintain as they age: a dwindling source of parts requires pricey refurbishment of the old, a situation exacerbated by accelerating failure rates causing network and service outages, and even liquidated damages to be paid. These networks should have been retired long ago. However, that they still garner significant revenue, directly and indirectly from the millions of services and other networks they transport – business voice, data, mobile access and core, emergency services, control and signalling – such that continuing worth demands some sort of technology transformation. After all, proprietary and dated tools, and manual processes associated with them, can be transformed alongside, to technologies such as Software-Defined Networking (SDN) and virtualised networks that are highly automated. So, what stands in the way of that transformation? The cost of maintaining the legacy network should outweigh the cost of transforming them, but it is not that straightforward unfortunately. Cost, risk and feasibility prove to be a very complex and circular interaction, and that is what has held back such investment, even by the most resourceful of operators. 3 Problems Three factors dominate their dilemma: Employees familiar with legacy technologies and their arcane proprietary management tools, are a diminishing proportion of the workforce. As they retire year on year, that undermines confidence, to the extent that the problem is thought best left alone Service and billing records and the actual network configuration - the so-called back-office - is data generally only in partial agreement with each other, incomplete, and not always an accurate reflection of reality. Sometimes this data is not available – older nodes can fail management communications – or are in difficult-to-consume formats. Without a reconciled and complete view, no one really knows if transformation is feasible, let alone how to conduct it reliably. Selecting the starting point is critical to success, but even with a clear big-picture strategy, so many detailed considerations and constraints contrive to make this far from obvious. Evaluating many, occasionally opposing, tactics and a myriad of interplays (customer, control, in-building services, physical distributions and virtual protections), must be confected – almost magically – into an effort, spend and recovery efficient roll-out that also mitigates all risks. The Challenge A large NA telecom local and long-distance operator had an established business case and strategy for transformation, but no longer had a planning team with the modelling capability to do so. Their scheduled goal was behind by years, so they sought to source an outside ‘Planning Tool and Service’ and select parts of their network to which it should be applied to meet their priorities. LightRiver, a well-established services supplier with advanced monitoring and management tools already deployed in their network, were awarded the contract. “Despite our accurate inventory of circuits and assets, we needed a partner that could process tens of millions of lines of data, and build a system to manipulate, sequence, and display the data in a way that was consumable and actionable. Cambridge MC was the perfect partner for us. Their tools and dashboards allow us to change the project sequence depending on the customer’s specific needs in each different area of the network.” – Matt Briley, SVP Global Sales & Solutions, LightRiver The Approach Our first step was to dispense with the original piecemeal focus on parts of the network, and analyse the whole: big data for deep insights. That revealed ‘simple’ transformations: those without ramifications for other regions, services or networks, and thereby avoid creating a large backlog of implementation work. That simplicity had to be quantified, to be credible and satisfy the operator’s priorities. We invented a novel ranked evaluation methodology to combine circa 25 complex and often diametrically opposing metrics. This yielded stepwise transformations that were well (but not critically) sequenced, such that dismantling the network became progressively simpler. Our Data Science and ML were also used to combine back-office records with actual network configuration data from LightRiver’s netFlex platform, reconciling information and filling in blanks, to provide for the first time an accurate and complete view to direct implementation and mitigate risks. Our automated ‘planning’ process could be conducted in whatever scope, scale and sequence of priorities the operator needed. Outcomes The plans produced enabled the operator to: Discover empty resources that could be powered down without any procurement. Determine the value of recoverable parts, that turned out 5x greater than anticipated, including previously untrackable inventory. Determine opportunity clusters like whole-site transformations, avoiding repeat site visits boosting field engineering efficiency. Recover their schedule to the extent that legacy products earmarked for 2025 could be conducted in 2024.
"Is it Snowing in Space?!" “Is it snowing in space?!” Asks a disgruntled Bill Murray in the film Groundhog Day when he is told that he cannot call out from the snowbound town of Punxsutawney, Pennsylvania. If there is a remake, Bill might not have to worry: signal dead zones may soon be a thing of the past due to recent advancements in satellite technology. Whereas the old picture of satellite communications was a scientist in the wilderness with a big clunky antenna, these days the technological payload is all in space. Recent advancements such as Low Earth Orbit (LEO) satellites, advanced beamforming, and the use of mobile spectrum bands means that any phone supporting 4G LTE can potentially receive satellite data directly. This integration of satellite and terrestrial networks is set to reshape the mobile industry, creating both opportunities and challenges for traditional mobile network operators (MNOs) and mobile virtual network operators (MVNOs). In this article we give an overview of the technological advancements, the major players in the market, and then consider the effects this will have on traditional wholesale mobile market structures; concluding with the emerging opportunities for new revenue and growth. The Evolution of Satellite Connectivity Historically, satellite communications operated independently from terrestrial networks, serving specialised markets with limited scalability and high entry barriers. However, recent advancements, particularly in Low Earth Orbit (LEO) satellite technology, have dramatically altered this scenario. The most well-known example is obviously SpaceX, which has played a pivotal role in democratising space: reducing barriers to entry and making satellite connectivity more scalable, performant, and accessible. SpaceX and other companies have found innovative ways to dramatically reduce costs. Since Sputnik 1 in 1957, launching payloads into space has been prohibitively expensive, with costs exceeding $100,000 per kilogram in the 1960s and averaging $16,000/kg for heavy payloads from 1970 to 2010. SpaceX’s innovations have brought these costs down through reusable rockets, vertical integration, economies of scale, and advancements in materials and manufacturing processes: leading to price points as low as $100 per kilogram in recent years. However, cost is just one of the barriers. The real gambit has been provided by Low Earth Orbit (LEO) satellites, which typically orbit at altitudes ranging from approximately 160 to 2,000 km and offer low-latency, high-speed connectivity — making them ideal for real-time applications and direct-to-device communications. The latest generation of technologies now enable LTE mobile phones to connect directly to satellites without specialised hardware, marking a significant milestone in mobile communications. The Major Satellite-to-Cell Players While SpaceX's Starlink has garnered the most attention, several other major companies are actively developing satellite-to-cell technologies and forming strategic partnerships with terrestrial mobile operators. As of April 2024, Starlink had established 15 partnerships with mobile carriers globally — including T-Mobile in the US. T-Mobile has structured its beta program to begin with text messaging capabilities, gradually expanding to include picture messages, data connectivity, and eventually voice calls. As of February 2025, it is reported that 7,086 Starlink satellites are in orbit, with 7,052 being operational. AST SpaceMobile has emerged as a significant innovator, achieving a historic milestone in April 2023 with the first-ever two-way voice call directly with an unmodified smartphone, via their BlueWalker 3 satellite. AST SpaceMobile launched its first five commercial satellites, the BlueBird 1-5 mission, on September 12, 2024, aboard a SpaceX Falcon 9 rocket. Lynk Global represents another significant player. In a recent expense report, it revealed that each satellite costs around $400,000 to build and up to $815,000 to launch into space. They hope to have up to 1000 satellites (for full continuous broadband coverage) in orbit by 2025 and 32 mobile network operator (MNO) partnerships by the end of 2025. The company has successfully demonstrated text messaging capabilities from satellites to standard cellular devices and continues to expand its constellation and service offerings. Huawei has partnered with China Telecom to demonstrate satellite-to-phone messaging capabilities, while Apple has worked with Globalstar to implement emergency satellite messaging features in recent iPhone models. Implications for Traditional Wholesale Mobile Market Structures Traditionally, the wholesale mobile market has been structured around MNOs, MVNOs, and wholesale aggregators. Revenue streams have typically included MVNO wholesale pricing, and IoT and machine-to-machine (M2M) solutions. However, the rise of satellite-to-cell technology poses potential threats to this established model. Disintermediation of MNOs and MVNOs Satellite-to-cell connectivity introduces the potential for disintermediation, where control traditionally held by MNOs could become fragmented across multiple parties in the value chain. As satellite providers increasingly offer direct-to-device services, traditional operators risk losing their central role in network management and customer relationships. Pricing Pressure on Wholesale Markets The increased availability and competition from satellite connectivity providers could exert downward pressure on wholesale pricing. As satellite services become more affordable and accessible, traditional wholesale providers may face challenges in maintaining their pricing structures and profitability. Competitive Pressure in IoT and Enterprise Applications Satellite connectivity is particularly well-suited for IoT and enterprise applications, especially in remote or challenging environments. As satellite-to-cell technology matures, traditional wholesale providers may face intensified competition in these segments, necessitating strategic adjustments to remain competitive. Emerging Opportunities in Satellite-to-Cell Connectivity Despite these challenges, the integration of satellite connectivity into mobile networks also presents substantial opportunities for innovation and growth. Forward-thinking operators can leverage satellite-to-cell technology to develop new business models and revenue streams. Hybrid Terrestrial-Satellite Subscription Models Providing Ubiquitous Connectivity Operators can offer hybrid subscription plans that seamlessly integrate terrestrial and satellite connectivity. Such models provide customers with uninterrupted coverage, enhancing user experience and creating differentiated service offerings. Wholesale Satellite Resale for MVNOs Satellite-to-cell technology opens new avenues for MVNOs to expand their service portfolios. By reselling satellite connectivity, MVNOs can offer enhanced coverage and reliability, particularly in underserved or remote regions, thereby attracting new customer segments. IoT and Enterprise-Focused Applications Satellite connectivity is a natural fit for IoT and enterprise applications, such as remote monitoring, asset tracking, and industrial automation. Mobile operators can forge strategic partnerships with satellite providers to deliver specialised solutions for these markets, tapping into new revenue opportunities. Emergency-Only and Disaster Recovery Plans Satellite-to-cell technology can play a crucial role in emergency and disaster recovery scenarios, providing a reliable backup to terrestrial networks when they are unavailable or overwhelmed. Operators can develop emergency-only plans that leverage satellite connectivity to ensure critical communications during crises. Conclusion Satellite-to-cell technology represents a convergence of space and terrestrial communications systems that promises to fundamentally alter global connectivity markets and players. The dramatic reduction in launch costs by a factor of 20 has enabled the deployment of massive satellite constellations that were previously economically unfeasible. The competitive landscape continues to evolve rapidly, with SpaceX, AST SpaceMobile, and Lynk, and traditional telecommunications companies all pursuing various technological approaches and business models. Commercial text messaging services are already becoming available through beta programs, with video calling capabilities demonstrated and voice calls progressing toward wider availability. The integration of 5G standards with satellite networks continues to advance through collaborative industry initiatives, with projections of a $50 billion market by 2032. As this technology continues to mature throughout 2025 and beyond, it promises to eliminate mobile dead zones and create new application possibilities that were previously unimaginable. The future of mobile communications is undoubtably hybrid: blending terrestrial and non-terrestrial networks into seamless connectivity solutions that follow users wherever they go. This has wide reaching implications for connectivity in remote and isolated regions, and offers perhaps the fastest and most cost-efficient route to bridging the digital divide. It will also transform how we respond in disaster zones and hazardous areas — increasing the ability to protect and save lives with faster and safer humanitarian and emergency services.
BT has recently announced an extension to the Public Switched Telephone Network (PSTN) switch-off in the UK. The previous deadline of December 2025 has been postponed to 31 January 2027. Given the lack of a national plan or central funding for the necessary infrastructure upgrades, responsibilities for welfare and safety will impact at a local level on councils, the NHS and healthcare services, social housing, fire services, and third sector organisations (charities and community groups). If these upgrades do not get funded and planned in detail (and if alternative digital solutions are not adequately tested under real scenarios) then emergency services could fail at a critical moment, putting vulnerable people at risk. The PSTN switch-off will impact five key areas; read below for more information on these. Vulnerable Citizens & Healthcare Communications technology has become vital in care home settings, which rely on technology such as fall alarms to ensure the wellbeing of their residents. Currently, in the UK, there are around 25,000 sheltered housing schemes, and an estimated 90% of them are reliant on analogue connections – for both admin and security – that will need to be transitioned onto an IP solution for continuity. This speaks to concerns across the healthcare industry more widely, which is currently characterised as a ‘Frankenstein estate’ of different telephony systems and technologies, suffering from inefficiencies, security vulnerability, and fragmented communication as a result. Across 56 NHS Trusts which took part in a Freedom of Information request by Maintel, they uncovered up to 10,315 PSTN/ISDN lines installed. Not only this, but 44% of these Trusts have admitted that they have no strategy in place for the PSTN switch-off This poses several risks and dangers following the switch-off if these Trusts do not plan accordingly. Disruptions to operations may seem resolvable to a smaller, private entity, but the impact on the healthcare industry to essential mechanisms which rely on traditional phone lines such as the emergency services will be critical. This will be compounded by a litany of administrative burdens which will divert time and resources away from patient care. Building Alarms & Security Unless fitted with an IP-based signalling solution, the majority of alarms and security systems – including intruder alarms, fire alarms, personal alarms, and CCTV – rely on signal transmission to an Alarm Receiving Centre (ARC) via the legacy PSTN network. This means that, once the switch-off takes effect, older and outdated alarm systems which have not been upgraded will no longer be able to transmit vital signals. This makes the PSTN switch-off, and planning for a proper transition, a matter of public safety. In 2019, there were nearly three million PSTN-connected intruder alarms across the UK, meaning that a lot of national infrastructure will be at risk after the switch off – both to intrusion, and fire. Transport Infrastructure On a day-to-day basis, the PSTN switch off has the potential to create severe disruption throughout public spaces due to its monopoly on transport infrastructure. A spokesman for Transport for London explained that of their nearly 6.5k sets of traffic lights, 1k still use remote monitors relying on PSTN technology. This issue isn’t just contained to London, nor traffic lights. Throughout the UK, a lack of migration plan past the switch-off could mean inadequate replacement of bus stops, EV charging hubs, travel card technology, and roadside telephones, all of which utilise PSTN technology to a certain extent. Facility Monitoring It is not just transport infrastructure that threatens to cause disruption if not properly transitioned, as the same monitoring technology leveraged for traffic lights and security systems is also used to monitor facilities and their utilities. As of 2022, the water industry relied on around 25,000 PSTN lines to complete critical services such as monitoring water levels, managing flood and stormwater, and treatment works. Furthermore, 43,000 lines were utilised to monitor gas pressure and electricity supply. Office & Depot Telephony Although the effect to analogue and landline phone lines introduced by the PSTN switch-off may be obvious (if not, read another of our articles on the stop sell), its impact on other telephony technology present throughout the public sector may be unconsidered. For example, though their use has been declining since its introduction in the 1980s, fax machines are still utilised by certain organisations for their apparent heightened security and reliability compared to digital alternatives. Furthermore, until recently two of the UK’s telephony providers were duty bound to support fax on their networks within the Universal Service Obligation (USO). This was changed with the announcement of the PSTN switch-off. Local businesses and other organisations comprise a key demographic of the public sector, however all entities regardless of industry or sector may still be utilising fax or landline phones, which need to be replaced before the switch-off in order to maintain key operations. How the Public Sector Should Respond Given the lack of a national plan or central funding for the necessary infrastructure upgrades, responsibilities for welfare and safety will impact at a local level on councils, the NHS and healthcare services, social housing, fire services, and third sector organisations. If these upgrades do not get funded and planned in detail, then the technology and services detailed in this article could fail at a critical moment, putting vulnerable people at risk. Funding & Planning: Councils will need to work with hospitals, schools, and other public bodies, alongside Communication Providers (CPs), to share resources, overcome common problems, and model future costs. Protecting the Vulnerable: Ofcom has ruled the following: ‘If you are dependent on your landline phone – for example, if you don’t have a mobile phone or don’t have mobile signal at your home – your provider must offer you a solution to make sure you can contact the emergency services when a power cut occurs. For example, a mobile phone (if you have signal), or a battery back-up unit for your landline phone. This solution should be provided free of charge to people who are dependent on their landline.’ Continuity of Public Services: Understand how the PSTN supports the services offered in the local community, and work with local groups and advisory boards to ensure there are communication strategies and ways to share resources. Also, make it clear that migrated services must be tested and comply with current regulations. Infrastructure Development: Ensuring adequate internet infrastructure is a key responsibility of local councils. They need to work with internet service providers (ISPs) to enhance connectivity, particularly in rural and underserved areas, to support new IP-based communication systems. Awareness: Unlike the shift to digital TV, which was government-initiated, the phase-out of the PSTN is industry-driven because the network is privately owned. Consequently, it is unlikely that there will be a government-sponsored national campaign to spread awareness of these changes and the risks involved. It therefore falls to local authorities, in conjunction with CPs and local groups, to try and disseminate this information to their communities, and in particular to vulnerable people. How We Can Help Our Public Sector and PSTN teams can help local councils and other public bodies by providing strategy, financial planning, procurement, and project management services as and when you need them. Get in touch with Craig Cheney, Managing Partner and lead for Public & Education, to discuss a range of services which might suit your needs: ccheney@cambridgemc.com . Terminology PSTN: Public Switched Telephone Network - a complex network of copper wires, switching centres, and other infrastructure that has been the backbone of the UK's telephony network since Victorian times. VoIP: Voice Over Internet Protocol - a technology that allows people to make voice calls using an internet-based communications technology. By converting voice signals into digital data packets, VoIP can transmit conversations over broadband connections and across the internet. Digital Voice: refers to BT's specific VoIP service or more generally to any service that transmits voice over your broadband connection. Confusingly, VoIP, IP and Digital Voice are often used interchangeably. CP: Communication Provider - an organisation, either private or public, that offers telecommunications services or a mix of information, media, content, entertainment, and application services over networks. ISDN: Integrated Services Digital Network - a set of communication standards that allow for the digital transmission of voice, video, data and other services over the PSTN network. ADSL: Asymmetric Digital Subscriber Line - allows for high-speed data transmission over existing copper lines. ADSL is a type of digital subscriber line (DSL) technology that is typically provided from a telephone exchange enabling broadband internet access, video-on-demand, and LAN services. The service is asymmetric in that the broadband speed profile to the premise is higher than that from the premise. Maximum download speeds are in the order of 20Mbit/s (Megabits per second). VDSL: Very high speed Digital Subscriber Line - a form of DSL technology primarily delivered from street side cabinets delivering very high-speed data rates over existing copper lines. Often referred to as Fibre To The Cabinet (FTTC). VDSL is an asymmetric service, with superior performance when compared to ADSL technologies. Maximum download speeds are in the order of 80Mbit/s. FTTP: Fibre To The Premises - a fibre connection from a premises to a fibre exchange. Offers superior performance when compared to DSL technologies. Services can be symmetric or asymmetric. Maximum speeds are in the order of multiple Gbit/s (Gigabits per second). Useful Links A Councillors Guide to Project Gigabit: https://www.gov.uk/guidance/a-councillors-guide-to-project-gigabit https://www.gov.uk/government/publications/gigabit-broadband-voucher-scheme-information Gigabit Voucher Scheme Eligibility Checker: https://www.gov.uk/government/publications/gigabit-broadband-voucher-scheme-information Project Gigabit government webpage: https://www.gov.uk/guidance/project-gigabit-uk-gigabit-programme Virgin O2 guide to the Switchover: https://www.damianhinds.com/sites/www.damianhinds.com/files/2023-10/23%2010%2030%20Virgin%20Digital%20Voice%20Switchover%20MP%20Guide.pdf Ofcom guide to moving your landline to digital: https://www.ofcom.org.uk/phones-telecoms-and-internet/advice-for-consumers/future-of-landline-calls#:~:text=If%20you%20don%27t%20have%20a%20broadband%20connection%2C%20your%20provider,take%20up%20a%20broadband%20service BT Guide: How the PSTN Switch Off will Affect my Business: https://business.bt.com/insights/what-is-ip-telephony-pstn-switch-off/ A guide to digital voice: https://www.damianhinds.com/sites/www.damianhinds.com/files/2023-10/23%2010%2030%20A%20guide%20to%20Digital%20Voice%20BT%27s%20new%20home%20phone%20service.pdf Telecare stakeholder action plan: https://www.gov.uk/government/publications/telecare-stakeholder-action-plan-analogue-to-digital-switchover Shared Rural Network: https://srn.org.uk/about/ Digital Poverty Alliance: https://digitalpovertyalliance.org/
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