PROVIDING SIP INTERWORKING IN A NEXT GENERATION NETWORK

摘要

Methods and systems for extending the IMS/SIP architecture of the NGN to provide QoS service to generic bearer flows. Providing QoS treatment of a bearer flow within a communication session established between two end devices using a different in-band signalling protocol is supported. A Signalling Inter-Working Function (SIWF) is provided in a path of the in-band signalling between the two end devices. The SIWF is operative to: detect at least a signal state of the in-band signalling; and establish a communications session with QoS treatment of bearer flows spanning at least a portion of an end-to-end path between the two end points, based on the detected signal state.