In response to how will they know when drivers change, etc...
If you take your QualComm and push "Create Message" and then use the + and - keys, you will see a list of all available canned messages that you can scroll through. I imagine that these will become activated when the time comes.
For instance, Message 28 is "HOS Switch Drivers"
Message 27 is "HOS Request Logs"
Message 25 is "HOS Duty Status Change"
There are many more canned messages that aren't listed that I, personally, would like to see Panther use.
There is one called "Bump the Dock". The way it works is that you send Message 2 when you arrive at shipper like normal. Once you are finally able to actually get into a dock to get loaded, you send the "Bump the Dock" message. Same for when you arrive at the consignee. That would let dispatch see a better picture of what's going on. It might even stop those "are you getting loaded yet?" messages!