You must be in a CallSite Chat session to use voice communication. To launch, the voice communication, click the 'Voice Communication' button. The other user will be prompted to accept or reject your request.
Once the other user accepts, both of you will see the following window:
Voice communication can operate in two modes, depends on parameter in Preferences -> Misc window.
Semiplex mode
To speak, hold down the big green button and talk into your microphone. When the other person is speaking, the big green button will be deactivated and changed to red with text 'Receiving' in it.
Full-duplex mode
To speak, click on the big green button and talk into your microphone. Other person can speak at same time too. For pause speaking click on same button again.
