To minimize interruptions during an audio conference, you can turn off entry and exit tones. This turns off tones (or name announcements) for the active audio conference only. If you'd like them off for all audio conferences you host, use Meeting Settings and select "silent entry." See Change meeting entry and exit tones.
Note: You must be connected using your phone (not computer audio).
To turn off entry and exit tones:
On the telephone keypad, press *3 and then 9.