Multi-service telephone switching system
January 25, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3668317 3920908 Special services add-on for dial pulse activated telephone switching office Keyless and indicatorless local telephone switching system Method and apparatus for controlling a conference Method for customer definable telephone capability Integrated message service system Telephone switching system adjunct call processing arrangement Customer programmable real-time system Patent #: 4747127 InventorsAssigneeApplicationNo. 148331 filed on 01/25/1988US Classes:379/88.22, Message management379/198, PBX379/201.02, Service profile (e.g., calling service)379/201.05, Distribution of service (e.g., downloading, uploading)379/207.02, Service trigger (activation or deactivation)379/269Distributed controlExaminersPrimary: Brown, Thomas W.Attorney, Agent or FirmInternational ClassesH04M 003/50H04Q 003/42 AbstractEnhanced telephone services are provided through a multi-service telephone switching system that contains a programmable adjunct connected to a telephone switching system. Specifically, this system includes a telephone switch that serves at least one subscriber and an adjunct connected both through one or more distinct paths, such as a number of hunt group lines, and through a datalink, such as a simplified message desk datalink, to the telephone switch. The telephone switch routes a telephone call involving this subscriber to the adjunct through an available hunt group line and provides a message to the adjunct over the datalink specifying a condition under which the call was routed. In response to this message, the adjunct takes complete control of the call substantially throughout the remainder of its duration and provides a desired enhanced service that has been pre-defined by a service script stored within the adjunct. Different service scripts can be invoked to provide correspondingly different enhanced services to the subscriber depending upon the specific condition for which the call was routed to the adjunct and/or a specific event occurring during the call.Other References
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