InfoConnect for Airlines VBA Guide
BeepsOnSystemMessage Property

Gets or sets the number of beeps to sound when the host sends a message.

Object.BeepsOnSystemMessage As Long

Property Value

A value of 0 turns off the beep, and 99 causes the session to beep until a MessageWait command is issued. (For example, if using the PEPWIN.EKM keyboard map, a user would press CTRL+M to turn off the beep.) The valid range of values is 0 - 99 inclusive.
See Also