I have it no complete in mind (and also I dont have the 7905 to repeat the download anymore), but if you read the upgrade procedures for the ATA186, and type the "*" commands for the ATA voicemenu on the keyboard of the 7905, you will be sucessfull!
To get into the maintainance mode (press "*" "0" and the left Softkey) was the hardest part.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...