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Smart City IoT SIM Cards, IoT Routers & IoT Gateways


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Smart Cities: Intelligent IoT Infrastructure

Cities ranging from Singapore to Seattle are embracing the possibilities of the IoT to revolutionise various aspects such as waste management and parking enforcement. Caburn Telecom has effectively implemented connectivity to link IoT solutions on a global scale. Our IoT SIM cards, compatible with multiple networks and operators, help to overcome connection challenges due to changing demand, urban infrastructure, and environmental factors.

We link various devices using different methods, such as NB-IoT, 4G, or 5G. Our connectivity options are reliable, secure, flexible, efficient, and cost-effective. Our solutions are utilised in smart IoT gateways for secure communication. Our VPN services ensure secure remote management of IoT gateways and routers.

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Reliable Connections for Smart Cities

IoT is being utilized to connect different parts of a city’s infrastructure and their communication with residents and visitors. This includes managing bike rentals, activating streetlights, and monitoring buses, all through a sensor network. As manual tasks are replaced by automated systems, access to data becomes increasingly important for the efficient operation of various aspects of city living. Caburn Telecom’s durable multi-network, Multi-IMSI IoT SIM cards (and managed IoT routers), keep devices connected no matter their location or movement. Our team of connectivity specialists provides necessary support for any issues, utilizing our cutting-edge management platform and experienced technical support to resolve problems without expensive on-site visits.

Main Technologies Used in Smart City Applications

When it comes to navigating the world of the Internet of Things (IoT), it’s important to understand the relationships between various components. In the realm of IoT connectivity, there are three key players: IoT routers, IoT gateways, and the different communication protocols that power them, such as LoRaWAN, Z-WAVE, ZigBee, BLE, and 868MHz systems.

IoT Routers

Starting with IoT routers, these devices serve as the central hub for data exchange between IoT devices and the internet. They act as a bridge, connecting devices to the internet and sending and receiving data packets. IoT routers are responsible for managing network traffic, ensuring secure connections, and handling data encryption. They tend to use Wi-Fi and some models also use Bluetooth.

IoT Gateways

IoT gateways play a crucial role in connecting IoT devices to the wider network infrastructure. These gateways enable communication between local IoT ecosystems and cloud-based applications. Essentially, they facilitate data transmission between IoT devices and the internet. IoT gateways often incorporate multiple communication protocols, allowing them to communicate with a wide range of IoT devices and sensors. This extends the types of devices that can be communicated with, including smart building technologies such as Z-Wave, ZigBee, BLE, Modbus and LoRaWAN.

Connectivity for Smart Transit Systems

When it comes to modernising public transportation, IoT connectivity plays a vital role in shaping smart transit systems. By integrating sensors, cameras, and communication devices, transport authorities can monitor vehicles, passenger flow, and infrastructure in real-time. This technology allows for improved fleet management, predictive maintenance, and enhanced safety and security measures. With the use of data analytics, smart transit systems can also optimise routes, reduce congestion, and provide a more efficient and seamless experience for commuters. In essence, IoT connectivity is revolutionising the way we think about public transportation, making it smarter, safer, and more responsive to the needs of the community.

With the advancement of IoT connectivity, users can now seamlessly travel, purchase and pay through their smart phone wallets. Mobile ticketing allows travellers to quickly access and store their tickets digitally, reducing the need for physical tickets. Click to pay systems further streamline the payment process, allowing users to make transactions with just a tap on their phone. This integration of IoT technology not only enhances user convenience but also promotes a more efficient and secure way of travelling and making payments. 

Wi-Fi Routers for Buses & Trains

WiFi routers are essential components in providing passengers with internet access on buses and trains. These routers are typically installed by trained technicians to ensure a stable connection throughout the journey. Once installed, passengers can connect to the WiFi network using a password provided by the transport operator. This enables commuters to stay connected, work, or simply browse the internet while on the move. The convenience of having WiFi routers on buses and trains has become an indispensable feature for modern travellers.

Shorter Range Radio Technologies Used in Smart City Applications

A number of shorter range technologies are used in smart buildings in conjunction with IoT gateways: 


LoRaWAN, or Long Range Wide Area Network, is a low-power, wide-area network technology designed for long-range communication and low-data-rate applications. It is particularly well-suited for use cases such as smart cities, agriculture, and industrial automation. With its long-range capabilities, LoRaWAN can cover large areas with minimal power consumption.


Z-WAVE, on the other hand, is a wireless communication protocol that focuses on home automation. It is commonly used for controlling smart home devices such as lights, thermostats, and door locks. Z-WAVE operates on a mesh network topology, where multiple devices act as repeaters, extending the network range and improving reliability.


ZigBee is another popular wireless protocol with a particular focus on low-power, low-data-rate applications. ZigBee can be used in various IoT applications, from building automation to healthcare monitoring and asset tracking. It supports network scalability and can handle large numbers of devices in a single network.


BLE, short for Bluetooth Low Energy, is a wireless communication protocol commonly used in IoT devices such as smartphones, wearables, and smart sensors. It is energy-efficient and well-suited for battery-powered devices. BLE enables short-range communication between devices and is widely used for applications such as fitness tracking, asset tracking, and smart home devices.

868MHz Systems

Lastly, 868MHz is a frequency band commonly used for alarms and telecare systems.


Modbus is a communication protocol commonly used in industrial automation systems. It allows for communication between various devices such as sensors, actuators, and controllers, enabling them to exchange data and control signals seamlessly. With its simple and easy-to-implement structure, Modbus has become a popular choice in the industry for its reliability and efficiency in transmitting information between devices. Its widespread adoption and compatibility with different manufacturers make it a versatile option for creating interconnected systems within factories and plants.

Case Studies

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Seguirincat Case study, image.


Project type: Connected security and alarm systems for commercial and domestic customers. Location:...

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Connected IoT/M2M Solutions Across all Sectors

Please contact us if you would like to discuss your IoT SIM or M2M requirements or would like to learn more about our industry-leading secure and resilient IoT / M2M connectivity plans. We can also discuss any individual technical issues you may be encountering within your IoT / M2M deployments or from your existing SIM or connectivity supplier. This is, of course, on a no obligation basis.

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