You don't need to have two different vendors to interoperate and get into comparability issues or inter-operability issues.
Fortinet FortiExtender integrates effectively with external solutions like 5G LTE broadband modems and offers centralized control for multiple devices. It functions as an active secondary link or backup with seamless initial setup and central management. However, troubleshooting challenges, high costs for 5G models, lack of SD-WAN integration, and slow support are drawbacks. Also, physical SIM removal is required, impacting user experience and WAN communication enhancement.