A timer, for a duration as specified by this object,
will be started when the SVC call is released from the
network side. Upon expiration of this timer, the call
agent is notified about this through ServiceChange
message(for H.248 protocol) or through gateway initiated
delete message(for MGCP protocol).
This object is not applicable for Multi-CID SVC(if MIB object
'cvapSvcMultiCIDPerSvc' is set to 'true').