Patent ID: 7289487
Filing Date: 2007-10-30
Classification: H04L,H04Q

Abstract:
1. An apparatus for redundancy of a voice processing unit in a media gateway system including a circuit switch part and a packet switch part, comprising: a circuit switch unit comprising a TDM space switch, the circuit switch unit being connected to a plurality of circuit interface units; a plurality of voice processing units converting voice signals into packet data and converting packet data into voice signals; a protection voice processing unit that serves to replace a disabled voice processing unit from among said plurality of voice processing units; a circuit-side cross point switch connecting channels switched through the TDM space switch to the corresponding voice processing units according to the setup of a main control unit; a packet switch unit comprising a packet switch, the packet switch unit switching packet data from the voice processing units, and outputting the switched data to a plurality of packet interface units; and a packet-side cross point switch connecting the packet switch unit to the voice processing units according to the setup of the main control unit, said main control unit being programmed and configured to control the whole system through an inter-processor communication to download connection information of the disabled voice processing unit to the protection voice processing unit, and to set up an input port number and an output port number of the packet side and the circuit side cross point switches during a redundancy switch process of the voice processing unit.