What features are important to you and maybe we can let you know if the radio is capable. The only thing I've noticed so far is trading quick call paging for OTAR capabilities. All the usual features seem present otherwise but I'm not very familiar with the bells and whistles Vertex offers.
one thing i have not found on any of these p820, p920 series is in the brochure it states you can choose from i believe 7 RX LED lights. There is no setting in the software for that, the only way to see if the light actually has differnt colored rx light is to turn the radio on while holding the lowest side button, than use the channel knob and i have 14ish different colors
btw FPP mode there is no option for that setting either.
I found this on the other site:
type C:\Vertex Standard\CE76 for Windows\CE76Win.exe/f
The clone editor will launch and FPP will now be enabled
other options are
/m (Maintenance Mode)
/e (Engineering Mode)
/d (Depot Mode?)
Again this doesnt work on all CE versions, and all modes might not work on any particular version either, but you can use these methods to bypass passwords, edit S/N's, enable other features, and to go OOB.
The only "Trick", "HAck"/ Mod that works is -F
which enables FPP.
I was thinking if these radios are now EOL, they should offer like $199 which gives you access to all latest and last firmware, and be able to enable or disable options or heck even use OOB. EFJ supports hams and allows WIDEBAND options on their VP600 series. ( i have the VP600 and, vp900(vhf 7/800)