This object specifies a active Telepresence stream type
which to be monitored.
If the value of this object is 'all', all stream types are
monitored with the corresponding ctpcStatRisingThreshold
and/or ctpcStatFallingThreshold for ctpcStatMonitoredType.
Moreover, if this value is 'all', there cannot be another
row for the same value of ctpcStatMonitoredType which is either
'video' or 'audio'.
If ctpcStatMonitoredType has value latency(1) or
authFailurePacket(4), this object will have value '0'.
Note that some Telepresence systems may not support different
thresholds for different stream type.