Motorola HS830 - Manual (Page 39)

Using Your Wireless Module 37
holding both volume buttons for three
seconds. See table below for operation.
Note: Disabling the audible alert does
not affect the phone or earbud
operation. Alerts will still be heard in the
earbud speaker if the phone is set to
other than silent mode.
Action
1 Press and hold volume up and
volume down buttons for
3 seconds.
Audible Tones: High tone - Low tone
Result: Alert disabled
2 Press and hold volume up and
volume down buttons for
3 seconds.
Audible Tones: Low tone - High tone
Result: Alert enabled