AUDIO OPTIONS SPEAKER CONTROL ALWAYS OFF ATM0 Speaker always OFF. Ring is independently controlled by RING VOLUME. +ON UNTIL CONNECT ALWAYS ON ATM2 Speaker always ON. DIALED TO CONNECT ATM3 Speaker ON after final digit dialed out and speaker OFF when carrier detected. Tone dialing will not be heard. SPEAKER VOLUME 0-7 ATL0-7 Default is 4. The higher the value, the higher the volume. Speaker volume is set to maximum when in call progress monitoring, if not ATM0. RING VOLUME 0-7 ATN0-7 Default is 5. The higher the value, the higher the volume. A value of 0 disables the ring function.