Fall through telephone directory

Details Fall through telephone directory Fall through telephone directory

H - Electricity

04

M

H04M 3/493 (2006.01) H04M 1/2745 (2006.01) H04M 1/725 (2006.01)

Patent

CA 2310192

A telecommunication user terminal, such as a traditional telephone set or a mobile telephone, provided with a personal address book or internal database (PTD), e.g. located on a user's smart-card. The internal database has several memory locations (1A1,...,IA5, ...) each storing a call reference that may be selected as calling number by a search key entered by the user on a keyboard (KB) of the telephone. The internal database further has an extra memory location (XE) that stores an extra call reference to a second database (TDS) and that is used in case no matching is found with the other call references. The second database is an external directory service controlled by an operator or service provider. The internal and external database complement one another in a transparent way for the user owing to a fall- through selection circuit (FT) also forming part of the telephone.

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