Siemens Aktiengesellschaft

Nokia Siemens Networks Gmbh & Co Kg

Andreas Berg

Alexander Aschir

Ronald Heine

Bart Van Ballaer

Klaus Moneke

A USSD Call Back Service UCB which provides a function via which a telephone call MOC begun in a foreign country is implemented by a call back service which then provides the functions of: Analysis of an incoming USSD string, Analysis of A party and B party, Call set-up to the A party, Call set-up to the B party.

Method for implementing a call-back service in a mobile radio network

The invention relates to a method for charging for telecommunications links in a communications network. When a setup request for a communications link which is directed to a communications terminal and incurs a charge for a charge account associated with the communications terminal is deleted, a network node in the communications network performs sequences for setting up the communications link and forwarding sequences for setting up a forwarding communications link. To bill telecommunication charges securely and reliably at all times, even in the course of roaming, forwarding information is stored in a memory network node in the communications network during the forwarding sequences. Debiting of communication charges for the communications link from the charge account associated with the communications terminal is prevented if the memory network node stores the forwarding information.

Method of charging for telecommunications links within the context of call forwarding services

If, during the initialization of an MTC service for a subscriber (TNB) to a telecommunications network which is in the form of a an overlay network, the performance required to carry out the service exceeds the performance level supported by the access SSP node (SS ), the service control point (SCP) uses the call address to produce a routing address which contains information relating to further routes of the call to a second SSP node (SS ) which supports the required performance level, and transmits ( ) this to the first SSP node (SS ) for passing it on.

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Berlin, Germany

Andreas Berg