| 摘要 |
The present invention relates to data communication networks. In particular, the present invention relates to a procedure and a system for ensuring successful emergency communication in a data communication network in which the terminal devices (4a, 4c) are connected to the local exchange via an access node (3) consistent with the V5 standard. In the procedure of the invention, in the event of a failure of the V5 interface used by a subscriber, the subscriber's emergency traffic is directed to emergency lines created locally in the access node. The emergency line is optionally connected to a specified location, such as the teleoperator's customer service.
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