This object specifies the entry status of ctpcEntry.
Once ctpcRowStatus is set to 'active', the call creation
cannot be stopped.
Changing the value of this object from 'active' to
'notInService' or 'destroy' will likely have
consequences of call termination and/or losing the
call statistics information.
Thus, write access to this object is inappropriate for
most of the Telepresence systems, and many implementations
will choose not to support write-access for this object.