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NTN Satellite IoT Connectivity for Devices That Can't Afford to Go Dark

Com4 brings 3GPP-standard satellite connectivity to your existing NB-IoT devices, so coverage doesn't end where cellular towers do.

 

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Key benefits

Global connectivity

True Global Reach

Connect devices anywhere on Earth, including the places no cell tower will ever reach.

Sim

3GPP Release 17 Standard

Standardised satellite NTN built on the same specifications as your existing NB-IoT connectivity.

Satellite

Cellular / Satellite Interoperability

Terrestrial and satellite connectivity work as one system, managed through a single platform.

Swap

Automatic Switchover

Devices move between cellular and satellite on their own, with no manual reconfiguration.

Truck driving past cellular tower

Your Devices Don't Stop Moving When the Signal Does

Modern IoT deployments depend on devices that are constantly on the move, or sitting somewhere a cell tower was never built to reach: trackers crossing borders, vessels offshore, sensors on a pipeline through open terrain, equipment on a remote job site. For these devices, a coverage gap isn't an inconvenience, it's a blind spot, a missed alert, or a lost asset.

Com4's Satellite NTN solution extends connectivity beyond terrestrial networks using the same 3GPP standards your devices already run on. No proprietary hardware. No second SIM. No separate platform to manage.

One SIM. Cellular When Available. Satellite When It Isn't.

Non-Terrestrial Networks connect a device directly to a satellite instead of a ground-based tower. Until recently, that meant proprietary hardware and a completely separate system to manage. Under the 3GPP Release 17 standard, that's changed: NTN now works with standard NB-IoT devices and SIMs, the same technology already running in most of today's IoT trackers and sensors.

In practice, that means a device authenticates on a terrestrial cellular network when one is available, and automatically switches to satellite the moment it isn't, on the same SIM, with no manual configuration and nothing for your team to do mid-route.

Automatic Switchover

A vehicle, vessel, or sensor that drops off cellular coverage doesn't go dark. It reconnects via satellite automatically and reconnects to cellular again the moment coverage returns, all visible from the same dashboard.

satellite-connectivity

 

 

 

 

 

 

 

Com4's satellite NTN service runs on a 5G NTN satellite network built to the 3GPP Release 17 standard.

Standardised, Not Proprietary

Com4's Satellite NTN service is built on the 3GPP Release 17 standard, the same specification body that governs standard cellular IoT. That's a deliberate choice: it means your devices don't need custom antennas, special firmware, or a bespoke hardware revision to go satellite-ready, provided they support the relevant 3GPP release. As the chipset ecosystem matures (early NTN-capable modules, including Nordic Semiconductor's nRF9151, have already demonstrated chip-to-cloud communication over satellite), more of the hardware you already use will qualify out of the box.

3GPP logo

 

Works With the Devices and Systems You Already Have

Com4's Satellite NTN solution supports any device or modem compliant with 3GPP NB-IoT NTN specifications, so you can deploy new hardware or extend existing fleets without a redesign.

Everything is managed through Polaris CMP, Com4's connectivity management platform: provisioning, usage monitoring, alerts, and automatic cellular/satellite switchover, all from the same dashboard you already use for terrestrial SIMs. Open APIs connect it to whatever fleet, asset-tracking, or operations software you're already running.

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Polaris screen image small

 

A Fallback Layer for the Routes That Need It, Not a Default for Everything

Satellite NTN is not a replacement for cellular connectivity, and for most IoT deployments within reliable coverage, standard cellular remains the right and more cost-effective choice. Satellite NTN earns its place where a coverage gap creates real operational risk:

 

Maritime

Maritime tracking

Vessels, cargo, and offshore assets beyond cellular range

Flash

Remote energy infrastructure

Pipelines, remote generation, and grid assets in areas without terrestrial coverage

Tractor-1

Agriculture in rural areas

Equipment and sensors on land cellular networks don't reach

End to End solutions

Logistics across coverage gaps

Cross-border routes and long-haul corridors with dead zones

Location

Environmental monitoring

Sensors in genuinely remote or wilderness locations

Your Questions About the Satellite IoT Connectivity 

What are Non-Terrestrial Networks (NTN)?

Non-Terrestrial Networks (NTN) are satellite-based communication networks standardised by 3GPP to extend cellular connectivity beyond terrestrial coverage. NTN lets IoT devices connect directly to satellites using standard cellular technologies such as NB-IoT and LTE-M, maintaining connectivity in remote locations, offshore environments, rural areas, and regions with limited cellular infrastructure. It's a key technology for global asset tracking, maritime monitoring, agriculture, mining, and critical infrastructure.

How does cellular-to-satellite failover work?

Devices automatically switch between terrestrial cellular and satellite networks based on coverage availability. When cellular service is available, the device uses it by default; if coverage is lost, the device transitions to satellite to maintain communication, then switches back once cellular coverage returns.

What devices can connect to satellite IoT networks?

Devices equipped with NTN-compatible NB-IoT or LTE-M modules can connect. This includes asset trackers, telematics devices, environmental sensors, industrial monitoring equipment, maritime systems, and remote infrastructure applications. Device support for NTN standards is expanding as more chipset vendors build satellite-ready capability into their modules.

What is the latency of satellite IoT connectivity?

Latency depends on the satellite architecture. Low Earth Orbit (LEO) networks provide meaningfully lower latency than traditional geostationary satellites. For low-bandwidth use cases like asset tracking, environmental monitoring, and equipment telemetry, this is sufficient for reliable data transmission and operational visibility.

Do I need a satellite dish or special antenna?

No. Satellite IoT built on 3GPP NTN standards works with standard NTN-capable NB-IoT and LTE-M modules, using compact antennas and low-power hardware similar to standard cellular IoT deployments. No dish, no specialised ground equipment.

Does the same SIM work on both cellular and satellite networks?

Yes. A single SIM, eSIM, or iSIM authenticates across both terrestrial cellular and satellite (NTN) networks, managed through Com4's Polaris CMP platform, so there's one connectivity relationship to manage rather than two.

Is satellite NTN more expensive than standard cellular IoT?

Yes, NTN connectivity currently costs more per device than terrestrial cellular. For most deployments within reliable coverage, standard cellular remains the more cost-effective choice. NTN is best evaluated as a fallback or complement for the specific routes or locations where a coverage gap creates real operational or business risk.

How do I get started with satellite IoT connectivity?

Getting started requires an NTN-compatible device, a connectivity provider that supports satellite networks, and confirmation of coverage in the regions your devices operate in. Most organisations start with a pilot deployment to validate hybrid cellular-satellite connectivity before scaling to production.

Ready to Close Your Coverage Gaps?

Talk to us about the devices, routes, or regions where cellular alone isn't enough. We'll help you work out whether satellite NTN is the right fit, and how it fits into a connectivity strategy that still leads with cellular wherever cellular works.