When a position is closed (exit from the market, reversal or a close by operation), a sound is played.
A sound alert is selected from the standard terminal package:
Added new parameter notification t send push-notifications to mobile terminals based on the MetaQuotes IDs specified in the options window, in its "Notifications" tab.
This option is disabled by default (false).
The format of notifications is approximately the following:
deal #127811212 sell 0.01 EURUSD, profit: 0.08 USD