You can configure Convergence to play a sound through the sound through the computer sound card when you receive a new email message or a new instant message.
To set sound notification:
From the Service menu, click Options.
The Options section appears.
Expand Global and select Sound Alerts.
The Sound Alerts tab appears in the work area.
Select Enable sound alerts for new mail for your browser to play a sound through the computer sound card when you receive a new email.
Select Enable sound alerts for new IM message for your browser to play a sound through the computer sound card when you receive a new instant message.
Your browser may not support sound alerts or may need an audio plugin to play sound alerts. Search for and install a suitable audio plugin according to the instructions provided by your browser.