IoT SIM

IoT SIM Connectivity

Unlock the full potential of your IoT devices with Millbeck’s cutting-edge IoT SIM cards. As a trusted provider of industrial-grade connectivity solutions, Millbeck offers a comprehensive range of IoT SIM connectivity solutions designed to meet the diverse needs of businesses across various sectors.

IoT SIM

Roaming, Multi-Network SIM cards with Public and Private IP, SIM management portal.

IoT SIM Connectivity for Industrial and Mission-Critical Applications

As a Teltonika Diamond Partner, we understand the real-world requirements of IoT SIM connectivity. When routers, gateways and controllers are deployed in remote or critical environments, uptime isn’t optional — it’s everything. That’s why our IoT SIM cards are built for security, reliability and resilience, not consumer data use.

Our SIMs are engineered to complement Teltonika’s industrial router range.  From G LTE models like RUT241, RUT200, RUT951 and RUT956 to 5G and RedCap devices such as RUTX50, RUTM30 and RUT276.

The new Teltonika Calyx Pi- Hat 4G, 5G and 5G Redcap router / modem is one of the best examples for large scale deployment of IoT SIM Cards for a reliable, secure and easy to manage (Teltonika RMS and IoT SIM Platform) IoT Connectivity solutions.

Combined with quality antennas and proper configuration, these SIMs deliver stable, managed connectivity across the UK, Europe and beyond.

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Why Choose an IoT SIM Instead of a Standard Mobile SIM?

Consumer SIM cards are designed for phones that move between cells and handle short-term sessions. IoT SIM cards are entirely different:

• Always-on data sessions: Designed for routers, sensors and gateways running 24/7.
• Extended lifecycle: Typical deployments last 5–10 years without physical SIM swaps.
• Multi-network roaming: Automatically connects to the strongest available network (EE, Vodafone, O2 or Three in the UK).
• Private and fixed IP options: Essential for secure inbound access or VPN connectivity.
• eSIM/eUICC form factors: Enable remote operator profile switching for large-scale rollouts.

For remote cameras, EV chargers, telemetry nodes or vending machines, these differences mean the link stays online when it matters.

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Security and Reliability First

IoT deployments demand more than bandwidth — they need controlled, secure and auditable access.
Our SIMs can be provisioned on private APNs, VPN tunnels or fixed private IP networks, ensuring your devices remain invisible to the public internet. Combined with Teltonika’s full VPN stack (OpenVPN, WireGuard, IPSec) and Remote Management System (RMS), you gain total visibility and control from anywhere.

• Firewall-safe connectivity with NAT protection and managed inbound access.
• Data segregation between device fleets for compliance and security.
• RMS integration for device monitoring, firmware updates and diagnostics.

When used with the correct antenna and cable setup, IoT SIMs provide not just signal, but stable throughput, even in fringe coverage areas.

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Roaming and Multi-Network IoT SIM Cards

A true IoT SIM isn’t locked to a single carrier. Our multi-network roaming SIMs select whichever operator offers the best signal at each site. This is crucial for:

• Rural CCTV and agriculture where coverage fluctuates.
• Mobile assets such as service vehicles or temporary installations.
• Fail-safe backup links for retail or office WAN failover.

These SIMs are steered or non-steered, depending on the use case — giving flexibility between lowest latency or widest reach.

Our EU and Global roaming SIMs extend coverage across borders without the headache of managing separate contracts or profiles.

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Private and Fixed IP IoT SIMs

For remote access, static IP addressing remains essential.
Our Fixed IP SIMs (public or private) enable direct connection to your router or device fleet, ideal for:

• CCTV / ANPR systems requiring centralised NVR access.
• SCADA and telemetry installations needing IP-routed data polling.
• Remote IT and maintenance applications where VPN access is required.

Private Fixed IP SIMs are recommended when security is the priority. Access is restricted to your VPN gateway or RMS environment, preventing unauthorised exposure on the open internet.

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Dynamic IP IoT SIMs

For outbound data and cloud services, a Dynamic IP SIM is often sufficient.
These are typically used when devices send data to an external platform rather than requiring inbound connections. Applications include:

• Environmental monitoring and smart metering.
• Vehicle telematics and asset tracking.
• IoT gateways that email or publish data via MQTT, HTTPS or SMTP.

They’re the most cost-effective option for large fleets where inbound access is not required.

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eSIM (eUICC) and Embedded IoT SIMs

Modern industrial routers like the Teltonika RUTM30 and RUTX50-eSIM feature embedded SIMs that support remote provisioning (eUICC).

This allows carrier profiles to be loaded or swapped over-the-air — no more physical SIM handling, no risk of corrosion or tampering, and far greater deployment efficiency for volume rollouts.

Benefits include:

• Remote carrier switching for best pricing or coverage.
• Reduced on-site maintenance.
• Smaller, more rugged hardware footprints.

Perfect for OEMs, integrators, and edge devices built to run for years without intervention.

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IoT SIM Solutions Available from 3G Router Store

All SIMs are available in standard, micro, nano and MFF2 (soldered) form factors, and can be supplied with data bundles from 1 MB to hundreds of GB, plus optional VPN access and RMS service.

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Supporting Hardware and Accessories

Reliable connectivity depends on more than the SIM itself. We supply:

• Industrial routers from Teltonika, Proroute and Inhand Networks.
• High-gain antennas from 2J Antennas. Panorama Antennas and Fullband Antennas.
• Low-loss cables and short cable lengths.
• Configuration services for private APN and VPN setup.

From a single device to a nationwide rollout, our team ensures your equipment, SIM and network are all optimised for long-term stability.

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Typical Applications

• Remote CCTV and ANPR networks
• Smart city infrastructure
• EV charger connectivity
• Renewable energy and utility monitoring
• Industrial automation and PLC telemetry
• Agriculture and environmental monitoring
• Retail failover and POS backup
• Rapid-deployment or temporary WAN sites

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Embedded IoT SIM Solutions

As a Teltonika Diamond Partner, we can offer our IoT SIM Cards for embedded IoT connectivity.  The CALIX Pi hat is a great Pi HAT for Raspberry Pi devices, offering CAT4 4G (EBD021), 5G (EBD050) and 5G Redcap versions.  So combing the Teltonika CALYX with Teltonika RMS and our SIM management portal, along with a wide range of IoT Antennas to ensure an IoT solution with reliable and secure embedded modem / router, an IoT SIM Connection with management portal and IoT antennas to ensure the best connectivity.

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Get Expert Help

Whether you need a single SIM for testing or a managed multi-network pool for an entire deployment, our specialists can help you choose the right plan and configure your Teltonika router for best performance.

Contact our IoT SIM team:
📞 01756 799 793
✉️ sales@3grouterstore.co.uk