Below are the functions you can execute via your touch tone telephone key pad.

For All Participants:

Mute/Un-mute Your Line *1
Raise Your Hand
(when in Q&A mode only)
*5
Increase Conference Volume *6
Decrease Conference Volume *4
Increase Speaking Volume *9
Decrease Speaking Volume *7
Get Participant Count *0
Exit Menu *8
 Exit Conference #

Additional Options for Call Moderator (separate ID):

Lock/Unlock the Conference (no new callers) *2
Mute/Un-mute All Participant Lines *5
Start/Stop Recording *3

Looking for more detail? More Features? Check out Web Control Basics.