Sierra Wireless AirCard 555 - Manual (Page 162)

AirCard 555 Network Card User Guide
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Sounds Tab
Table 14-8: Sounds Tab Options
Field Description
Enable This field allows you to enable and disable
all sounds.
When this box is checked, you have the
option of individually enabling and disabling
the Call Waiting Alert, Incoming Call, New
SMS Message, and New Voice mail
sounds.
When the box is not checked, there are no
sounds to notify you of any of these events.
Use the check box to indicate whether you
want all sounds enabled or disabled.