Gigabit Multi-WAN VPN Router, R700-Cudy: WiFi, 4G, and 5G Equipments and Solutions
Multiple WAN connection (MultiWAN), the most popular Internet Connection concept in Cuba, trying to take it to OpenWrt - Network and Wireless Configuration - OpenWrt Forum
Best Multi-WAN Routers
Gigabit Multi-WAN VPN Router, R700-Cudy: WiFi, 4G, and 5G Equipments and Solutions
Multi-WAN routers: A comprehensive guide to five of the best
DIY Multi-WAN Linux Router: Part 1 - Sagar Behere
Aspen Networks
Multiwan(Dual/Multi ISP) setup in linux for VM hosts | System Administrator – LiNuX 2 ME :)