EStatusUnknown = 0
EStatusIdle = 1
EStatusDialling = 2
EStatusRinging = 3
EStatusAnswering = 4
EStatusConnecting = 5
EStatusConnected = 6
EStatusReconnectPending = 7
EStatusDisconnecting = 8
EStatusHold = 9
EStatusTransferring = 10
EStatusTransferAlerting = 11