So I am doing a write up on the cellular failover function for the MX, and as it happens it is, as they say, easy to set up and fail over pretty good. But the one thing I'm missing is monitoring the cellular link. The link state ready does not reflect that it has "checked in" with the provider and has an external IP as I understand it. So my question is if there is a way to provide this, maybe a scripted solution that fails over by disabling the Primary WAN and checks for activity or something else? Anyone I open to suggestions?