Patent ID: 7710861
Filing Date: 2010-05-04
Classification: H04L,H04M,H04Q

Abstract:
1. A network system for link failure recovery in a Voice over Internet Protocol (VoIP) service, comprising: a first media gateway having a current link setting, and the first media gateway connecting to a remote terminal for transmitting a corresponding packet upwardly for the VoIP service; a second media gateway connected via a link to the remote terminal to which the first media gateway is connected for the VoIP service; a media gateway controller allocating the second media gateway for link resetting, and transmitting allocation information when receiving failure information of a link set through the first media gateway; and a router determining whether a packet transmitted from the first media gateway is received within a set time by monitoring a real time transport protocol port, so as to determine whether there is a failure of the set link, transmitting the link failure information to the media gateway controller, and resetting the link to the second media gateway according to the allocation information transmitted by the media gateway controller when there is a link failure.