Nokia Networks Oy

Jarmo Haukilahti

Olli Liinamaa

Seppo Vehmer

Procedure for connecting a subscriber to a telephone exchange in a data communication system comprising a telephone exchange (LE) with a number of subscribers defined in it, an access network (AN) connected to the telephone exchange via a first V5 interface (V5) and comprising a first access node (AN,), a second access node (AN,), which is connected to the telephone exchange, and a subscriber terminal (TE), which is connected to the local exchange via the access network and/or a concentrator. According to the invention, the second access node (AN,) is connected to the first access node (AN,) via a second V5 interface, the connection between the subscriber and the telephone exchange (LE) being this set up by cascading two V5 interfaces.

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Espoo, Finland

Jarmo Haukilahti