I can't open the app on my Blackberry
When I start the app, it asks for permissions. I hit save and the app closes.
Please try to go to device Options > Applications > Zello > Edit permissions and set the following permissions to Allow: Internet, WiFi, Cross Application Communication, Media, Recording and Files.
If you can't modify some of these or can't set them to Allow, you need to update IT policy on your BES server to allow modifying these permissions on the devices.