I just completed upgrading an inhouse system with the latest software, installed the latest CCA and defaulted the 520 and cue to factory defaults.
Now I found it easy to get handsets working no problems.
Voicemail though wass playing up.
I went through and set up the numbers to call for VM and AA and prompt management, but couldnt dial them through the phone.
I had to go into CLI and add dial-peers.
Now the MWI isnt working another issue which i still have to look at.
Also when i create a blast group and have the final destination as voicemail... it gets busy after the timeout expires even though i can ring voicemail now.
Next issue - if you put the system in PBX mode, then you add a CO line to a handset it puts the system back to key system mode...
Seems to me that CCA and CCC are good for basic dial tone installations but as soon as you want to do anything half tricky CLI needs to be used or indeed the system cant do it.
The whole point to my rant is the system needs and GUIs need to be more feature rich and easier to install if they want to be anywhere near as good as some of the other systems such as Panasonic or Samsung.