For the sounds to be played in Zabbix frontend, Frontend messaging must be enabled in the user profile Messaging tab, with all trigger severities checked, and sounds should also be enabled in the global notification pop-up window.
The sounds of Zabbix frontend have been successfully tested in the following web browser versions and no additional configuration was required:
wav files in the Firefox browser you can use one of the following applications:
Then, in Tools → Options → Applications, in "Wave sound (audio/wav)" set Windows Media Player to play these files.
Quick Time Player is required.
To play sounds in MSIE7 and MSIE8:
In the Windows Media Player, in Tools→Options tab, "File Types" is only available if the user is a member of "Power Users" or "Administrators" group, i.e. a regular user does not have access to this tab and does not see it.
An additional thing - if IE does not have some *.wav file in the local cache directory (%userprofile%\Local Settings\Temporary Internet Files) the sound will not play the first time.
Browsers where the sound did not work: