Importance

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Abstract

An apparatus, method and system are disclosed for providing call progress and status information for multiple leg telecommunication sessions, such as for flexible alerting, for intelligent network services. The preferred wireless system embodiment includes a home location register and a mobile switching center. The home location register stores a plurality of secondary directory numbers associated with a pilot directory number. The mobile switching center differentially processes and routes each outgoing call leg associated with each secondary directory number, to form a plurality of outgoing call legs. As the various outgoing call legs may be answered, not answered, released, have routing failures, or return busy signals, the mobile switching center generates corresponding call progress and status information. In the preferred embodiment, such call progress and status information includes parameters, for each outgoing call leg, such as time to answer, answer reason, no answer reason, busy reason, page response reason, no page response reason, and routing failure reason. The mobile switching center transmits the call progress and status information to the home location register, for subsequent dynamic utilization in providing intelligent network services, preferably utilizing a modified, ANSI-41 compatible information directive.

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First Claim