Just got the new .211 firmware for the CM685V which has a new SMS command which allows a forced failover switch from WAN to cellular and back again. This allows remote configuration on cellular via http. Not a feature I have seen on other cellular routers. Along with the existing failover and data limitation SMS alerts, this is a great feature, which saves a lot of time travelling to manually re-configure at remote sites. Saves on unexpected cellular data bills if your WAN drops out, and you are not aware you are using cellular data on failover. We asked for this feature to be added to the firmware and they sorted it within a week. Great customer service. Many thanks Tony & Ben