Nokia Siemens Networks Gmbh & Co Kg

Cellular Communications Equipment LLC

Rainer Liebhart

Di Zhou

Petr Gotthard

Cornelia Kappler

Erwin Postmann

Morten Schläger

Pavel Dostál

An operational method interfaces a second communication network containing an access node with a first communication network encompassing a contact node. In a first step, an access node reads or receives an identity which is specific for the second communication network and is stored in a storage medium of a memory node. Then an interfacing message containing the identity that is specific for the second communication network is transmitted from the access node to the contact node, which is defined by an address stored in the storage medium. A packet data service to the access node is supplied by the contact node such that the second communication network is interfaced with the first communication network. An assembly and a storage medium are provided for interfacing the second communication network with the first communication network.

Method for interfacing a second communication network comprising an access node with a first communication network comprising a contact node

Simplification of IMS registration in the event of emergency calls is made possible by apparatuses and a method for setting up an emergency-call connection from a terminal to an IMS via a network visited by the terminal, where, if the terminal is already registered in the IMS, setup of an emergency-call connection dispenses with IMS registration of the terminal in the IMS for this emergency-call connection if a comparison between a network identification for the visited network, of which the terminal was notified when it registered in the visited network, and a network identification for the terminal's home network reveals a match between these network identifications.

Simplified method for IMS registration in the event of emergency calls

Growing community of inventors

Munich, Germany

Rainer Liebhart