What are the considerations for deploying the Cisco Catalyst Cellular Gateways versus a router with a pluggable module or integrated LTE?
The first consideration is the cellular signal strength where your host router is located. If there is sufficient cellular signal where the host router is located, an integrated solution or a router that accepts a pluggable module may suffice. In this scenario, using a module provides potential upgradability in the future without replacing the entire host router. Integrated cellular solutions, however, are not upgradable.
If signal strength is not sufficient where the host router is located (i.e., basement, storage closet, etc.), a cellular gateway is likely your best option. You can place the gateway wherever signal strength is greatest and connect to your host router via Ethernet (up to 100m). This capability provides much more deployment flexibility in comparison to traditional coaxial antennas (which are limited to a range of 50 to 70 feet).
Another consideration is compatibility. Solutions using pluggable modules require a host router and module that are compatible with each other. The cellular gateways, on the other hand, are compatible with all Cisco IOS XE host routers, as long as there is an available WAN Ethernet port.