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:
Jun. 30, 2009
Filed:
May. 14, 2003
Martin Huck, Möglingen, DE;
Jörg Jäkel, Stuttgart, DE;
Martin Huck, Möglingen, DE;
Jörg Jäkel, Stuttgart, DE;
ALCATEL, Paris, FR;
Abstract
A method for the automatic activation and deactivation of a tandem connection (-) is provided responsive to receiving an activation or deactivation request. Prior to activation, received transmission signals are monitored (M) for an existing tandem connection to avoid creation of overlapping tandem connections. Further, responsive to receiving a deactivation request, the tandem connection sink function (SK) is deactivated and the existing tandem connection is monitored (M) to detect when no tandem connection information is received anymore to automatically deactivate the tandem connection source function (SO) as well. Direct signaling of a sink inactive identifier (RDI) takes also place between the tandem connection terminating network elements () to inform the far end tandem connection terminating network element () of an automatic deactivation of the tandem connection sink function (SK). Upon reception of the sink inactive identifier (RDI), the far end network element () deactivates its tandem connection source function (SO).