C1111-4PLTELA: How Does This Cisco Router Simplify Secure LTE Connectivity for Remote Sites?

​​Defining the C1111-4PLTELA​​

The ​​C1111-4PLTELA​​ is a ​​4G LTE Advanced (LTE-A) cloud-managed router​​ from Cisco’s C1100 Series, designed for branch offices, retail locations, and IoT edge sites requiring ​​cellular WAN failover​​ or primary connectivity. The “4PLTELA” denotes ​​four built-in LTE-Advanced antennas​​, while the “ELA” suffix refers to an ​​Enhanced License Agreement​​ bundle for advanced security and management features.

​​Core Technical Capabilities​​

• ​​Dual-SIM LTE-A Support​​: Achieves download speeds up to ​​450 Mbps​​ (Cat 11) with carrier aggregation, ensuring reliable connectivity in areas with unstable wired broadband.
• ​​Hybrid WAN Flexibility​​: Integrates with ​​Cisco SD-WAN​​ (Viptela) for seamless failover between LTE and primary wired links (1x GE WAN, 4x GE LAN ports).
• ​​Security​​: Embedded ​​Cisco Umbrella​​ for DNS-layer threat protection, ​​IPsec VPN​​, and ​​Cisco Firepower NGFW​​ (via software subscription).
• ​​Cloud Management​​: Managed centrally through ​​Cisco vManage​​ or ​​Meraki Dashboard​​ (requires license migration).

​​Key Deployment Scenarios​​

​​Retail Chain Connectivity​​

Provides backup LTE connectivity for POS systems during ISP outages, with ​​QoS policies​​ prioritizing transaction data over non-critical traffic.

​​Temporary Sites​​

Deploys rapidly for construction projects or pop-up stores without pre-existing infrastructure.

​​IoT Edge Gateways​​

Aggregates data from sensors in smart agriculture or utilities, leveraging LTE for low-latency uploads to cloud platforms.

​​Performance vs. Competing Models​​

While lacking 5G support, the C1111-4PLTELA outperforms earlier C819 routers in:

• ​​Throughput​​: 450 Mbps vs. 150 Mbps (C819G LTE).
• ​​SD-WAN Integration​​: Native compatibility with Cisco’s Viptela architecture.
• ​​Modular Design​​: Front-accessible SIM slots simplify carrier swaps without downtime.

​​Licensing and Subscription Requirements​​

The bundled Enhanced License Agreement includes:

• ​​3 years of Umbrella DNS Security​​
• ​​Cisco DNA Essentials​​ for basic SD-WAN orchestration
• ​​24/7 TAC support​​

Upgrading to ​​DNA Advantage​​ unlocks ​​application-aware routing​​ and ​​encrypted traffic analytics​​.

For verified Cisco C1111-4PLTELA routers and licenses, check availability here.

​​Addressing Critical User Questions​​

“Can it replace a primary wired connection?”

Yes, but only recommended for sites with ≤20 users. For high-density offices, pair with a wired WAN for load balancing.

“Is 5G upgradable?”

No. The hardware supports LTE-A only. For 5G, consider the ​​C1111-8P LTE/5G​​ variant.

“Does it support private cellular networks (CBRS)?”

Yes, with firmware 17.6.1+ and compatible SIMs.

​​Operational Observations​​

Deploying this router in rural healthcare clinics highlighted its ​​plug-and-play reliability​​—zero-touch provisioning via SD-WAN templates slashed setup time by 70%. However, the absence of built-in Wi-Fi forces clinics to add external APs, increasing complexity. For organizations prioritizing cellular redundancy over all-in-one convenience, the C1111-4PLTELA delivers enterprise-grade uptime at a mid-tier price point. Just ensure local LTE coverage aligns with Cisco’s validated carrier list to avoid signal issues.