TELECOMMUNICATION NETWORK WITH LEAST COST ROUTING

摘要

The invention relates to a telecommunication network (1, 19, 29) having a route allocation based on switching data. The switching takes place on the basis of stored switching data which describe the most favorable route determined on the basis of definable functions. More particularly, the switching data may be determined on the basis of charges (LCR data). For minimizing the arising charges for users of the telecommunication network, for example, via the LCR functions, whose locations are at least partially wide apart, there is proposed that a plurality of mutually coupled private branch exchanges (2-1, 2-2, ... 2-n, 21, 24, 30, 31, 32) are provided to which are assigned respective storage means (6-1, 6-2, ... 6-n) for storing switching data and which include processing means (7-1, 7-2, ... 7-n) for determining the most favorable route to a subscriber terminal (22, 37, 52) positioned inside or outside the telecommunication network (1) in dependence on the stored switching data, while an outgoing route of a private branch exchange (21, 30) leads through one or more of the other private branch exchanges (24, 31, 32) and/or through one or more other telecommunication networks (26, 38, 51, 52).