Apparatus, method and system for controlling secondary treatment by a

Abstract

A system, apparatus and method are provided for controlling secondary treatment of multiple leg telecommunication sessions, such as for providing secondary treatment of outgoing call legs for a flexible alerting service, by an originating switch rather than a distant or terminating switch. The preferred system includes a home location register coupled to a mobile switching center. The home location register has, stored in a memory, a plurality of secondary directory numbers associated with a primary directory number, such as an ANSI compatible pilot directory number, and for each secondary directory number of the plurality of secondary directory numbers, further stored in the memory a corresponding originating no answer time parameter. The mobile switching center has an interface for receiving an incoming call leg designating the primary directory number and for differentially processing and routing each outgoing call leg associated with each secondary directory number, and the mobile switching center further providing secondary treatment of each outgoing call leg in accordance with its corresponding originating no answer time parameter. In the preferred embodiment, each corresponding originating no answer time parameter, for each outgoing call leg, is less than a corresponding terminating no answer time parameter which may be utilized by a terminating switch or end office.