How to check installed software in debian based linux (ubuntu)

Who remembers what has installed in his Ubuntu box?

Here is the simple command:

dpkg –get-selections > installed-software

more installed-software

What can you do in a fresh Ubuntu installation that you do not remember what software you need?

dpkg –set-selections < installed-software

and after that


All set in your fresh debian based linux.

Debian makes things simple 😀

Trixbox check/administer voicemail remotely

If you did not modify the default Main menu option 6, use the instructions below:

  1. Dial the main number for your business (that rings to your auto attendant menu)
  2. Press 6 (this is ‘check voice mail by default’ – you can modify this at any time)
  3. Dial the extension + #
  4. Dial the pin code + #

If you have assigned the keypress option 6 to some other function, you can use the steps below:

  1. Create a new virtual extension via the Extensions –> add extension page
  2. Forward the new extension to 8500 (this is a Fonality-reserved extension for voice mail access – it cannot be changed)
  3. Dial the main number for your business (that rings to your auto attendant menu)
  4. Dial the extension you created in Step #1
  5. Dial the extension + #
  6. Dial the pin code + #

Why can’t I just dial 8500?

8500 is an internal extension, which means it is not accessible to outside callers.  Fonality made the decision to interanlize this extension because enabling the extension would create a 3 second delay in any submenu with a Key Press option 8 configured.

If your submenu has a Key Press 8 configured, and a caller presses 8 within the submenu, the system must wait for 3 seconds for additional input before executing the Key Press.  The system doesn’t know if the caller is trying to execute Key Press 8 or if they are trying to dial an 8XXX extension.