Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1992-12-03
1995-03-28
Kuntz, Curtis
Telephonic communications
Audio message storage, retrieval, or synthesis
379 58, 379 59, H04M 1100
Patent
active
054024714
ABSTRACT:
Known methods of transferring between centers the handling of an active connection between a user and a mobile terminal in a telecommunication system designed for mobile communication generally have the disadvantage that the routing obtained is inefficient. By investigating both a first route between a first switching center and the user and a second route between a second switching center and the user for common centers which are able to handle call control and connection control separately, of which the common center situated nearest the first switching center is designated as a central intelligence point or, if the latter is not found, by designating the center situated nearest the user as a central intelligence point and then setting up a connection between the central intelligence point found in this way and the second switching center, the most efficient routing is obtained.
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Heidermark et al, "Signalling System No. 7 in Sweden", May 1990, Proceeding pp. 43-48, International Switching Symposium--Session B1, Paper 3.
K. Alsmar, "Network Enhancements to Meet Cellular User Demands", 1985, pp. 415-420, Proceedings of the National Communications Forum.
Nakajima, et al, "Enlarging Technologies based on No. 7 Signalling System for Mobile Communication Network", Nov. 1987, pp. 1583-1588, Globecom--Paper 40.5.
Dehling G. J.
Koninklijke PTT Nederland N.V.
Kuntz Curtis
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