Patent ID: 7701927

Claim:
A method for transmitting communication data in a communication system between a first communication unit and a second communication unit, comprising: setting up a primary connection between the first communication unit and the second communication unit via a node unit, wherein the first communication unit has a data packet address on a packet-oriented addressable network, the second communication unit has no data packet address, the node unit has a data packet address and is connected to the second communication unit through a device that converts digital signals to analog signals, and wherein the primary connection can be made through alternative paths between the first communication unit and the second communication unit through the node unit along which paths at least one conversion of a signal from analog to digital and from digital to analog occurs between the first communication unit and the node; transmitting, over one of the alternative paths, the data packet address of the first communication unit and the data packet address of the node unit; registering an ingress node on the packet-oriented addressable network, the ingress node being the first communication unit; registering an egress node on the packet-oriented addressable network, the egress node being the node unit; establishing a secondary connection between the egress and the ingress nodes via the packet-oriented addressable network for transmitting the communication data via the secondary connection such that digital signals from the first communication unit to the node are not converted to analog signals before reaching the node; and wherein the primary connection is maintained parallel to the secondary connection, the primary connection for carrying information related to call processing status of the first and second communication units.