As the demand for agile, reliable, and remotely manageable networks continues to grow, 4G and 5G cellular routers are becoming an essential part of many connectivity strategies. Whether it’s for primary internet access, backup failover, IoT connectivity, or remote deployment, cellular routers give businesses the freedom to extend their networks beyond the reach of fibre and leased lines.
For IT resellers and managed service providers (MSPs), helping customers choose the right cellular router requires a clear understanding of use cases, technical features, and value-added services. In this buyer’s guide, we outline the key considerations when specifying a 4G/5G router.
Use Case
Start with the application. Different scenarios demand different hardware specifications. Common use cases include:
- Primary connectivity for pop-up stores, construction sites, or rural locations
- Backup/failover to fixed-line internet for business continuity
- Industrial IoT deployments requiring serial interfaces or digital I/O
- Mobile/transport applications where GPS and rugged form factors are required
Understanding the environment helps narrow down your choices early. For more information and inspiration download the Teltonika Networks Use Case Catalogue.
Network Technology
While 4G (LTE) remains more than adequate for most applications, 5G is becoming increasingly relevant in high-throughput, low-latency environments.
- 4G routers offer proven, cost-effective solutions for many business use cases.
- 5G routers are ideal for bandwidth-heavy applications like video surveillance, real-time telemetry, or SD-WAN overlays.
Tip: Consider the availability of 5G coverage and the customer’s budget. A dual SIM 4G router may offer better resilience at a lower cost in areas with patchy 5G.
Physical Interfaces
The physical connectivity of a router matters just as much as its cellular capability.
- LAN/WAN ports: Look for gigabit Ethernet ports, especially if connecting to high-speed networks or SD-WAN appliances.
- Wi-Fi: Devices with Wi-Fi are great for connecting local devices wirelessly.
- Serial ports (RS232/RS485): Required for industrial machine control or legacy systems.
- Digital I/O: Useful for triggering alarms or relays in remote systems.
- GPS: Essential for fleet tracking or transport deployments.
Reliability and Redundancy
If the router is being deployed for critical applications, consider features that enhance uptime and resilience:
- Dual SIM slots: Allow failover between two networks.
- Multiple WAN options: Support for both cellular and wired/fibre connections for hybrid connectivity.
- Automatic failover: Ensure that the router can switch connections without disrupting service.
- Link bonding/load balancing: Useful for combining bandwidth or increasing redundancy (available via third-party services).
Remote Management
Remote monitoring and management are a major advantage for resellers and MSPs as it enables them to offer managed connectivity services without needing to be on-site, improving operational efficiency and service margins. For example, Teltonika Network’s Remote Management System (RMS) provides:
- Web-based access to all routers in your fleet
- Centralised firmware updates and configuration changes
- Remote CLI, SSH, or HTTP(S) access to LAN-side devices
- Monitoring, alerting, and historical reporting
- Optional add-ons like RMS VPN and RMS Connect
Security Features
Security should always be front of mind when selecting a cellular router as it enables you to deliver secure, compliant connectivity for industries like retail, finance, and healthcare. Teltonika routers support:
- Multiple VPN protocols (OpenVPN, IPsec, GRE, WireGuard)
- Firewall with traffic rules and filtering
- Access control and authentication
- Secure boot, firmware signing, and encrypted configuration
Form Factor and Mounting Options
Physical considerations like size, mounting, and power input are especially important in industrial or mobile applications:
- DIN rail or wall mounting for cabinet installations
- Ruggedised enclosures for harsh environments
- Wide input voltage ranges for transport and utility applications
- Passive or active PoE support
Choose a device that fits the installation site without requiring costly customisation.
Certification and Compliance
Ensure that your chosen router is compliant with relevant UK and EU standards, especially if deploying in regulated sectors. Teltonika routers are CE-certified and have additional approvals for transport and energy sectors.
Final Thoughts
Cellular routers are no longer just for niche or remote use cases. They are a core part of modern connectivity strategies, especially as organisations adopt hybrid working, IoT, and SD-WAN.
Teltonika Networks offers a wide portfolio of 4G and 5G routers and gateways, backed by a powerful remote management platform and a proven track record across industries.
As a reseller or MSP, understanding how to specify the right device for the job allows you to deliver reliable, secure, and cost-effective connectivity that adds real value to your clients.
