The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2003
Filed:
May. 11, 1999
Keijo Laiho, Espoo, FI;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The present invention relates to a method and an arrangement and an apparatus for implementing and monitoring a call in a telecommunications system in which the call is routed from a first transceiver to a second transceiver via a first switching center and a second subsequent switching center. In the solution a call setup message from the first switching center to the second switching center includes an address of said first switching center, the call setup message is intercepted at a telecommunications node intermediate to the first and second switching centers, whereafter the address of the first switching center is replaced with an address of the intermediate node. The call set up message transmission is forwarded then to the second switching center, and a response message including call set up information and using end to end signalling is transmitted from said second switching center, said response message using said substitute address of the intermediate node and being terminated in the intermediate node.