Skype For Business: DTMF Dial In Conferencing Phone Codes/Settings

All Troubleshooting steps / How To: 

o    Skype For Business: DTMF Information Conferencing Codes/Settings
*6 Mute or unmute your microphone
*4 Toggle audience mute
*7 Lock or unlock the conference
*9 Enable or disable announcements for participants entering and exiting the conference
*3 Privately play the name of each participant in the conference
*1 Play a description of the available DTMF commands
*8 Admit all participants currently in the lobby to the conference