Patent ID: 6570869
Filing Date: 2003-05-27
Classification: H04M

Abstract:
A signaling apparatus for establishing a voice call bearing voice data though a packet-switching network, comprising:a first communication interface coupled to a first coding unit so as to communicate information with the first coding unit; a second communication interface coupled to a second coding unit so as to communicate information with the second coding unit; one or more processors coupled to the first communication interface and the second communication interface; and a memory coupled to the one or more processors and comprising instructions which, when executed by the one or more processors, cause the signaling apparatus to perform the steps of: receiving signaling data for establishing the voice call; obtaining a network address of the first coding unit in the packet-switching network by transmitting, in response to receiving the signaling data, a first message to the first coding unit requesting the network address of the first coding unit, and receiving a second message from the first coding unit containing the network address of the first coding unit; and controlling the second coding unit to establish a bearer channel with the first coding unit for carrying the voice data through the packet-switching network, based on the network address.