The mxp series has an End Call pop up so if you hit the hang up button by mistake you have the option to cancel and stay connected.  The C-Series and newer systems don't have that feature.  Not sure why it was left out.  How do we get that feature ad...

I have 2 cams connected to a few different c60/c90 systems.  What's the best way to upgrade the secondary cameras firmware?  Running 7.3.6. In the past I've just physically moved them to the primary location plugged in and booted.  Hoping there was a...