Patent ID: 6785223
Filing Date: 2004-08-31
Classification: H04L,H04M

Abstract:
A telecommunications system, comprising:one or more clients coupled to a packet-switched network; a first gatekeeper coupled to said packet switched network and configured to provide for call set up and call signaling of a media connection among said one or more clients; a second gatekeeper, responsive to a request from at least one of said one or more clients upon notification of a failure of said first gatekeeper, configured to provide said call set up and call signaling during said communication if said first gatekeeper fails, wherein said second gatekeeper and said first gatekeeper maintain a supervisory link identifying one or more calls being supervised by said first gatekeeper prior to said failure of said first gatekeeper; wherein a media connection among said one or more clients is maintained while said second gatekeeper re-establishes said call set up and call signaling using information provided over said supervisory link; wherein said request comprises at least a portion of an original call setup request and a re-establishment identification.