Telecoms Resilience in Extreme Cold Conditions

Extreme cold temperatures can wreak havoc on telecoms infrastructure, causing equipment failure and disrupting vital communication services. This is especially true in regions like Alaska, where temperatures can drop as low as -50°C.

In such conditions, telecoms companies must ensure their networks are designed to withstand the harsh climate. This includes using specialized equipment and materials that can operate effectively in subzero temperatures.

For example, fiber optic cables are particularly vulnerable to freezing temperatures, causing signal degradation and even complete network outages. In fact, a single fiber optic cable can be damaged by a temperature drop of just 1°C.

Telecoms companies can mitigate these risks by implementing measures such as thermal insulation, heating systems, and backup power sources. By taking proactive steps, they can minimize the impact of extreme cold on their networks and keep vital communication services running smoothly.

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Telecom infrastructure is a vital part of modern communication systems, and it's essential to understand how it works to appreciate the concept of telecoms resilience.

The physical infrastructure of terrestrial telecommunications networks consists of copper wires and optical fibers.

These networks can be divided into core networks, which are high-bandwidth transmission systems connecting geographically dispersed locations, and access networks, which provide connection between the exchange and the customer's premises.

The core network, also known as the backbone, is a critical component of the telecom infrastructure, as it enables high-speed data transmission between different locations.

In the UK, BT's voice continuity 'cloud' plays a significant role in ensuring the resilience of telecoms, particularly with the introduction of smartnumbers.

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Freeze-thaw cycles can weaken the structural integrity of telecommunication towers and masts, increasing the risk of collapse.

Repeated freezing and thawing can cause soil to expand and contract, leading to ground movement that may destabilize the foundations of telecommunication structures. This makes maintaining optimal humidity levels within equipment enclosures particularly challenging.

Low temperatures can cause batteries to lose capacity and efficiency, leading to equipment malfunctions or failures. Batteries used in uninterruptible power supplies (UPS) and backup systems are especially affected.

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Prolonged exposure to cold can cause materials to become brittle, leading to physical damage such as cracks or breaks in cables and connectors. This is a common problem in areas with extreme cold temperatures.

The accumulation of ice and snow on telecommunication towers and cables can lead to physical damage, causing structures to collapse or power lines to snap. Ice buildup can add significant weight to structures.

Cold weather can significantly impact signal propagation, reducing the strength and increasing the latency of radio and microwave signals. This is particularly problematic for satellite communications and high-frequency radio links.

The expansion and contraction of materials due to temperature fluctuations can lead to structural fatigue and eventual failure. This is a major concern for telecommunication infrastructure in cold climates.

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Mapping the dependencies of your telecom infrastructure is a crucial step in building resilience. It involves understanding the people, processes, technology, and third parties on which you rely.

A significant undertaking is required to map the complex web of dependencies across an organisation. This is critical to identify any single points of failure and ensure resilience investment is targeted for the greatest impact.

Regular, scenario-specific exercising provides an organisation the opportunity to prod and test their resilience thresholds. These thresholds are not the same as existing risk appetites, and instead represent the boundary beyond which a service or organisation is unable to maintain its usual operations or recover effectively from an adverse event.

Understanding what level of vulnerability is acceptable is essential. An organisation may define these thresholds against a range of criteria including financial, customer or reputational impacts.

Disruption is inevitable, and regulatory requirements such as the TSA must be built into resilience planning. Failure to do so could result in breaches of these requirements, which can be critical in some cases.

Exchange based solutions offer a part diversion service if required and voice recording of calls, whereas non-exchange based diversion services provide an all or nothing diversion service if required but do not offer voice recording of calls.

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In the UK, GemaTech offers exchange based solutions in association with all carriers except Verizon, while Teamphone offers non-exchange based diversion services in association with BT Group.

Carrier diversions are usually limited to all of the ISDN30 DDI numbers being delivered to 1 single number.

Teamphone's non-exchange based diversion service does not offer voice recording of calls, unlike GemaTech's exchange based solution.

Inbound numbers, such as 08/05/03 prefixed numbers, can be used to deliver to ISDN30 DDI numbers and can point them to alternative numbers in the event of a diversion requirement.

Both carriers and specialist companies offer inbound numbers in the UK.

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Cellular Mobile Communications play a crucial role in disaster response and recovery efforts.

Commercially available satellite communications can be made available to responders through a centrally-negotiated catalogue, enhancing the resilience of telecommunications through diversification.

In some cases, satellite communications can provide a reliable backup to traditional cellular networks during emergencies.

This can be especially useful in areas where traditional infrastructure is damaged or destroyed.

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Ensuring technical diversity is crucial for resilient telecom infrastructure. This means having multiple routes for your ISDN 30's to come through the exchange or exchanges.

Diverse routing is a method that achieves this, where the carrier provides more than one route to bring the ISDN 30's from the exchange or exchanges, but they may still share underground ducting and cabinets.

In the UK, GemaTech offers an exchange based solution that allows for part diversion of ISDN 30's, which can be a useful option for critical activities.

Commercially available satellite communications can also enhance the resilience of telecommunications through diversification, making them available to responders through a centrally-negotiated catalogue.

Public mobile networks can be affected by degradation of core communications networks, which deliver land-line telephone services, so it's essential to consider this when evaluating technical diversity.

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Terrestrial telecommunications networks, also known as fixed line or land line infrastructures, are the backbone of our communication systems. They consist of copper and optical fibers that deliver regular services like voice telephony and ISDN.

Core networks, or backbones, are high-bandwidth transmission systems connecting geographically dispersed locations, often referred to as nodes or points of presence. Access networks, also known as the local loop or last mile, provide connection between the exchange on the provider's network and the customer's premises.

The NEAT and TIDIE processes are regularly reviewed and tested to ensure the resilience of these networks. This includes planned and unannounced tests to identify potential vulnerabilities.

Category 2 telecommunications network providers, such as BT, EE, and Virgin Media UK, are identified as responders under the Civil Contingencies Act. They provide public electronic communications networks that make telephone services available.

Public mobile networks, also known as cellular networks, are dependent on core communications networks that deliver land-line telephone services. This means that failure or degradation of core networks can affect mobile services, highlighting the importance of diversity in telecommunications solutions.

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Diverse routing is a key concept in telecommunications that ensures business continuity by providing multiple routes for critical communication services.

This approach is particularly useful for companies that rely heavily on their phone systems, as it can help mitigate the impact of technical failures or outages.

Diverse routing can be implemented by providing more than one route to bring ISDN 30's from the exchange, or exchanges, as in dual parenting.

This means that if one route is unavailable, the other route can take over, ensuring that communication services remain up and running.

In fact, dual parenting allows multiple exchanges to provide ISDN 30's, sharing underground ducting and cabinets, like the green boxes by the side of the road.

However, it's worth noting that technical solutions can be complex and interdependent, making it difficult to assess their true diversity.

For example, public mobile networks rely on core communications networks, which can impact mobile services if they fail or degrade.

To increase overall telecommunications diversity, it's essential to consider the technological means of carrying out communication, ensuring that critical activities have multiple routes for communication.

This can be achieved by using smartnumbers, a new type of voice continuity number that stores the telephone number in BT's voice continuity 'cloud'.

With smartnumbers, companies can protect themselves from loss of a telephone exchange, ISDN or SIP circuits, or denial of access to their business premises.

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Inbound 08 numbers are a type of service offered by carriers and specialist companies in the UK.

These numbers can be delivered to ISDN30 DDI numbers.

Carriers and specialist companies offer this type of service.

Inbound 08 numbers can be pointed to alternative numbers in the event of a diversion requirement.

Fixed Line Communications are used to deliver regular services such as voice telephony and ISDN.

The physical network used to deliver these services consists of core networks and access networks. Core networks are high bandwidth transmission systems connecting geographically dispersed locations.

Access networks, often referred to as the 'local loop' or 'last mile', provide connection between the exchange on the provider's network and the customer's premises. This connection is usually made using copper wire or optical fibres.

The NEAT and TIDIE processes are reviewed regularly to ensure the resilience of fixed line communications. These processes are also subjected to regular planned and unannounced tests to ensure their effectiveness.

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Each country's network resilience strategy must be tailored to its unique needs and circumstances. This means considering factors like geographical characteristics, demographics, and statistics of natural disaster events.

Geographical characteristics, such as mountainous terrain or coastal areas prone to flooding, can greatly impact network resilience. For instance, a country with a lot of mountainous terrain may require more robust backhaul connectivity to ensure reliable communication.

Demographics, like population density and urbanization, also play a significant role in shaping network resilience strategies. In densely populated cities, networks may need to be designed to handle high traffic volumes and potential congestion.

Statistics of natural disaster events, such as the frequency and severity of hurricanes or earthquakes, can inform network resilience strategies. For example, a country frequently hit by hurricanes may prioritize building network infrastructure that can withstand strong winds and flooding.

The quality and robustness of existing infrastructure, including backhaul connectivity and power grid networks, must also be taken into account when developing network resilience strategies. This may involve upgrading or replacing existing infrastructure to ensure it can withstand disruptions.

The evolving nature of technology, such as the increasing use of satellite-based communication, must also be considered when developing network resilience strategies. For instance, satellite-based communication can provide a backup option in areas where traditional networks are disrupted.

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In the event of a disaster, having a reliable communication system is crucial for response and recovery efforts. The Electronic Communications - Resilience and Response Group (EC-RRG) takes the lead in developing and maintaining links within the communications sector and with Government on matters related to resilience.

To ensure effective communication during emergencies, it's essential to identify and review critical communication activities that underpin response arrangements. This includes assessing basic 'technology free' communication requirements, such as sending or receiving specific information.

The EC-RRG provides a forum for exchanging resilience planning and response information within the communications sector and with Government. This includes providing a response through NEAT (the National Emergency Alert for Telecommunications) to rapidly develop a situational picture of the state of the sector in an emergency.

In addition, adopting layered fall-back arrangements can help mitigate unavailability of technical solutions. This approach involves selecting technical solutions that can be used in the event of a failure, ensuring that communication systems remain operational even in the face of disruptions.

Here are some working groups established to focus on telecommunications resilience-enhancing objectives:

Extreme cold can cause significant damage to telecommunication infrastructure, leading to power outages and disruptions to services.

Ice and snow accumulation on towers and cables can lead to physical damage, including collapse or snapped power lines, due to added weight.

Galloping, a slow "skipping rope" movement of power lines, can occur when rain freezes on the lines and steady winds cause adjacent lines to sway and touch each other.

Severe cold can damage cell towers and equipment, leading to service outages, and snow and ice buildup can cause antennas to malfunction or misalign.

Snow and ice can absorb and scatter radio and microwave signals, reducing their strength and increasing latency, particularly problematic for satellite communications and high-frequency radio links.

Repeated freeze-thaw cycles can weaken the structural integrity of towers and masts, increasing the risk of collapse, and cause soil to expand and contract, leading to ground movement that may destabilize foundations.

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Temperature fluctuations can lead to condensation inside equipment housings, causing short circuits and the corrosion of electronic components.

Low temperatures can affect the performance of electronic components, leading to equipment malfunctions or failures, and batteries lose capacity and efficiency in extreme cold.

Prolonged exposure to cold can cause materials to become brittle, leading to physical damage such as cracks or breaks in cables and connectors.

Cold conditions often lead to higher energy consumption for heating telecommunication facilities and maintaining equipment temperature, putting a strain on power supplies.

In the UK, emergency mobile roaming is a vital feature that ensures you can make emergency calls even when your network is down.

Calls to 999 and 112 will automatically roam onto an alternative network with the best signal in the area.

This facility is particularly beneficial in rural areas, where network coverage can be patchy.

On October 15, 2009, Ofcom, the UK communications regulator, announced this facility to help people in emergency situations.

A layered fall-back plan is essential for disaster response and recovery. This approach helps mitigate unavailability by adopting multiple technical solutions that can be used in sequence.

In the event of a disaster, technical solutions may not be available all the time. This is a consequence of the reliability of the system and its ability to cope with congestion.

Emergency mobile roaming can be a lifesaver in rural areas where network coverage is limited. If a mobile phone is used to make a call to emergency service numbers and the provider's network is unavailable, the call will roam onto an alternative network with the best signal in the area.

A layered fall-back approach helps to ensure that essential services remain available even in the face of technical failures. This is crucial for disaster response and recovery efforts.

Having a layered fall-back plan in place can make all the difference in a disaster situation. It's like having a backup plan for your backup plan – it gives you peace of mind and helps you stay one step ahead.

In disaster response and recovery, it's essential to focus on processes and organizations, not just technical solutions. This means looking beyond mobile phones and other devices to the way responders communicate and organize themselves.

The Electronic Communications - Resilience and Response Group (EC-RRG) takes the lead in developing and maintaining links within the communications sector and with Government on matters related to resilience. They provide a forum for exchanging resilience planning and response information within the communications sector and with Government.

A coordinated response to major incidents that involve telecommunications benefits from a shared understanding of the impact. This is why the EC-RRG believes that the response to such incidents should be based on a shared understanding of the impact.

The EC-RRG is chaired by an industry representative and hosted by the Department for Digital, Culture, Media and Sport (DCMS). They convene quarterly in Plenary sessions, and a Strategy Board meets ahead of the plenary session to review the agenda.

Working groups have been established to focus on specific telecommunications resilience-enhancing objectives. These include planning for fuel-related emergencies, power resilience, and exercise planning.

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Remote work can be a challenge for telecoms resilience. Business continuity plans often require employees to work from home, which can cause a significant shift in internet traffic.

Running a transaction platform is particularly demanding on bandwidth, requiring a robust internet connection. Engage with your ISP to ensure your connection meets your needs.

Increased use of the internet for work-related activities can cause data caps to be reached, rendering the connection useless. Websites like SamKnows can provide information on possible connection speeds at a remote location.

In everyday life, having a reliable telecommunications system is crucial, especially in emergency situations. The Centre for the Protection of National Infrastructure (CPNI) has produced guidance on enhancing the resilience of telecommunications networks and services.

Smaller organisations can benefit from clear and concise advice on the range of technologies available, their strengths and weaknesses, and steps to enhance resilience at little cost. Relevant courses at the Emergency Planning College have been reviewed and extensively revised to support telecommunications sub-groups.

The Electronic Communications Resilience and Response Group (EC-RRG) promotes the availability of electronic communications infrastructures in the UK and provides an industry emergency response capability. Telecommunications Sub-Groups are to be established within the existing resilience infrastructures, each responsible for considering all aspects of communications.

In the UK, Telecommunications Sub-Groups will be established within the existing resilience infrastructures, considering all aspects of communications, including technical means and how resilience might be enhanced.

Remote work can be a great option, but it's essential to consider the impact on your internet connection.

Business continuity plans for pandemics have shown that a significant shift in working patterns can stress the internet, so it's crucial to prepare.

Running a transaction platform requires more demanding data requirements than email and web browsing, so you'll need a reliable and fast connection.

Engage with your ISP to ensure your connection meets your requirements, and websites like SamKnows can provide information about possible connection speeds at a remote location.

Increased use due to work-related activities may cause your internet access contract to reach its download limit, leading to severe throttling or even disconnection.

You might think that your internet connection is the only option, but there are many alternatives available. Access to the internet can be achieved by a wide range of means, including fixed line, wireless, and satellite.

Fixed line options include ADSL, cable, and fibre to the home or premises. These options can provide a stable and reliable connection, but the bandwidth realised is highly dependent on geographical location and local contention.

Wireless options, such as 3G and WiFi, offer greater flexibility and can be used in a wider range of locations. However, the bandwidth realised can be affected by the number of users and the local environment.

Satellite options, such as the Inmarsat BGAN service and VSat, can provide internet access in areas where other options are not available. However, they can be more expensive and may have higher latency.

If you're considering alternative internet access options, it's essential to engage with your ISP to ensure that your connection meets your requirements. Websites such as SamKnows can provide information about what connection speeds may be possible at a remote location.

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Here are some common internet access options, their characteristics, and potential limitations:

By considering alternative internet access options, you can ensure that your remote work setup is resilient and can adapt to changing circumstances.

Organisations need to rethink their approach to resilience, moving from a siloed, asset-based and compliance-driven approach to a holistic resilience capability.

Disruption is the norm and the risk and threat landscape is evolving at a rapid pace, making it essential for organisations to be able to adapt and respond at pace.

The traditional approach to resilience disciplines, such as business continuity, IT disaster recovery, cyber security, supply chain and crisis management, is no longer fit for purpose.

A building fire or flood is just one example of a narrow scenario that organisations need to respond to, and isolated recovery approaches, like restoring a single application from backup, are not enough.

Organisations have wide-reaching, deeply entangled value chains of interconnected systems that are fragile and will fail in ways we can't predict.

Being resilient by design is critical for both survival and strategic advantage in an era where disruption is the norm.

The TSA regulation provides a unique opportunity for telecom providers to pivot to a holistic resilience capability that meets regulatory requirements and delivers a competitive advantage.

Identifying critical communication activities is key to effective response arrangements in emergencies. Critical activities are those that are essential to the effectiveness of response arrangements, and focusing on these can help maintain the need to communicate.

ResilienceDirect is an online platform that enables resilience partners to collaborate and share information during planning, response, and recovery phases of an event or emergency. This platform is used by members to develop joint situational awareness and work together across geographical and organisational boundaries.

The Electronic Communications - Resilience and Response Group (EC-RRG) provides a forum for exchanging resilience planning and response information within the communications sector and with Government. This group also undertakes work programmes to inform communications sector response arrangements to emergencies.

Working groups have been established to focus on specific telecommunications resilience enhancing objectives. These include planning for fuel-related emergencies, power resilience, and exercise planning.

The EC-RRG convenes quarterly in Plenary sessions, and a Strategy Board meets ahead of the plenary session to review the agenda. The group is chaired by an industry representative and hosted by the Department for Digital, Culture, Media and Sport (DCMS).

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The UK's critical infrastructure relies heavily on telecommunications, and the Civil Contingencies Secretariat (CCS) works closely with the Department for Culture, Media and Sport and the Department for Business, Innovation and Skills to enhance the resilience of communications.

Here are some key working groups established by the EC-RRG:

In Northern European countries, telecommunications networks face significant challenges from harsh winter climates. The extreme weather conditions can severely disrupt transportation, power supply, and communication networks.

The City of Graz in Austria has prepared a comprehensive guideline for crisis management during power blackouts. This guideline specifies the requirements for maintaining continuous communications infrastructure.

The Federal Ministry of the Interior is working to increase the availability of this system to 72 hours, especially in urban areas and district capitals. Availability in Graz is already mandated for 72 hours.

The need for 72+ hour backup power is driven by the risk of cyberattacks on power systems, which could severely disrupt communications.

Five case studies are available for download, providing valuable insights into how telecoms resilience can be enhanced.

To prioritize what matters most, telecom providers should identify their Critical Business Services (CBS), which are the most important services they deliver. This will likely be closely aligned to the areas covered by the TSA.

Understanding the whole value chain enables an organisation to build a holistic and enterprise-wide approach to resilience, encompassing both the critical functions themselves, as well as the activities and services upon which they depend.

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In the field of telecommunications, resilience is crucial to ensure that services remain available even in the face of disruptions. Five case studies are available for download, providing valuable insights into how resilience can be enhanced.

These case studies offer real-world examples of how organizations have successfully implemented resilience strategies. They can be a great resource for those looking to learn from others' experiences.

The case studies include scenarios where telecommunications resilience was enhanced. They provide a wealth of information on what worked and what didn't.

To prioritize what matters, start by identifying your Critical Business Services (CBS). These are the most important services your organisation delivers, not individual technology applications or systems. Knowing what matters most allows the Board, Executive, and decision-makers at every level to provide challenge and ensure the right resilience is in the right place.

A traditional Business Impact Analysis (BIA) can then supplement an organisation’s resilience, capturing the activities that don’t directly underpin CBS but are still important for the ongoing viability of the organisation. These activities, and the associated security measures that protect them, ensure telecom providers can fulfil their obligations under the TSA.

Telecom providers should closely align their CBS with the areas covered by the TSA, as any security critical function of the network or service whose operation is likely to have a material impact on the proper operation of the entire network or service or a material part of it should be resilient.

One major issue with telecoms resilience is the increasing threat of cyber attacks, which can disrupt services and compromise customer data.

The average cost of a cyber attack on a business is around $200,000, according to a recent study.

Disaster recovery plans often rely on outdated technology, making it difficult to recover quickly and efficiently in the event of a disaster.

The National Infrastructure Protection Plan estimates that a single hour of network downtime can cost a business around $1 million.

Outdated infrastructure can also lead to equipment failure, which is a common cause of network outages.

In the article, it was noted that a single equipment failure can take down an entire network, highlighting the importance of regular maintenance and upgrades.

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