Fixed extension numbers

[yaro]

Where do I find a list of all the fixed extension numbers like the one for picking up a call, conferencing, parking etc...? Also, in Assistant it would be quite useful if names for all of the buttons were popping up when you hover you mouse pointer over them rather than guessing what would a button do when you press it.
yaro

 

[skagen]

Look under "system Extension Status" for the system extensions like voicemail, park extension, and conference rooms.

 

[yaro]

All there. Many thanks.
yaro