Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-10-10
2006-10-10
Ferguson, Keith (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S414100, C455S417000, C455S403000, C455S422100, C455S412100, C455S413000, C379S229000, C379S230000, C379S221010, C379S219000
Reexamination Certificate
active
07120441
ABSTRACT:
The present invention relates to a method and system for re-routing a call which has been routed from a calling party (1) through a communication network to a destination (4). A need to relay the call to another destination (5) is identified and a subscriber identification of the calling party (1) is signaled from the other destination back to the communication network using a call drop-back function. Preferably, the subscriber information is then used to derive a routing information of the other destination (5) which may be a right destination in case the initial destination (4) was a wrong destination. Thus, a call drop-back feature is used to route calls even in cases where a subscriber is connected to a wrong destination. Thereby, an effective re-routing can be provided in cases where a subscriber identification is not provided in the call, such that a single service access short code can be used by all subscribers irrespective of their mobile terminal and their location.
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“The Intelligent Network -Changing the Face of Telecommunications”, by Richard B. Robrock II, Proceedings of the IEEE, US, IEEE, New York, vol. 79, No. 1, 1991, pp. 7-20, X000208127 ISSN: 0018-9219.
Ferguson Keith
Nokia Corporation
Squire Sanders and Dempsey LLP
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