VoIP State
The status of the VoIP call:
Setup - The call manager is in the process of setting up the VoIP connection.
Admin - The VoIP connection is open, but only administrative and control packets (heartbeat, status requests, et are being sensed.
Active - Traffic is sensed on the connection, but not VoIP traffic
Inactive - No traffic has been sensed on the connection for an excessive amount of time.
Open - The RTP stream is open, and voice traffic is sensed on the connection.
Teardown - Connection teardown packets have been sensed and the call manager is in the process of closing the connection.
Closed - The connection has been closed.