This attribute is HISTORICAL. Please refer to the attribute of the
same name in the group AtmTmOper.
This attribute indicates the value of the clipping susceptibility
parameter in the BBC Information Element.
Clipping is an impairment in which the first fraction of a second of
information to be transferred is lost. It occurs after a call is
answered and before an associated connection is switched through.
A value of notApplicable is displayed in the case of nailed-up PVCs
for which this attribute has no significance.