If you set the ASA mode to Hold, the call will stop ringing while the message is being played, then it will blink on hold, Green at Ext. 10, Red everywhere else, and 10 will beep every 60 seconds to remind you that there is a call on hold.
If you set the ASA mode to Ring. the call will continue to ring while the message is being played, and it will continue to ring on all the sets that have the line set to ring.
If you set the ASA mode to Disconnect, the call will stop ringing while the message is being played, and the call will drop at the end.
If the first 2 cases, if you have MOH, the caller will hear it, even though in the 2nd case the call is still ringing on the sets
