INITIATING A CONTROLLING SERVICE

摘要

Services controlling the same call state model are independent of each other and do not necessarily have any knowledge of each other. To make the facilities of these parallel controlling services interoperable, at least one parameter is defined, whose value indicates whether a controlling service may be initiated to control a control record, if a controlling service has already been initiated. When detecting (301) a situation triggering the initiation of a second controlling service in the control record controlling call set-up, the initiation of the second controlling service is continued (315), if the parameter allows the initiation of the controlling service.