## join_call.ogg
@author Marco Ambrosini (marcoambrosini@icloud.com) 
@license CC0-1.0

## leave_call.ogg
@author Marco Ambrosini (marcoambrosini@icloud.com) 
@license CC0-1.0

## join_call.flac
@author Marco Ambrosini (marcoambrosini@icloud.com) 
@license CC0-1.0

## leave_call.flac
@author Marco Ambrosini (marcoambrosini@icloud.com) 
@license CC0-1.0