Method of providing differentiated service based quality of service to voice over internet protocol packets on router
First Claim
1. A method of providing Differentiated Service (DiffServ) based Quality of Service (QoS) to Voice over Internet Protocol (VoIP) packets through a router in an Internet protocol (IP) network, the IP network comprising routers, a VoIP call control device for performing a call processing function on the basis of a VoIP signal, and a QoS control server for providing QoS, the method comprising the steps of:
- a) providing VoIP call session information including source and destination IP addresses, source and destination user datagram protocol (UDP) port numbers, and requested QoS information to the QoS control server by the VoIP call control device;
b) finding source and destination routers using the VoIP call session information and sending the VoIP call session information requiring provision of QoS to the source and destination routers by the QoS control server; and
c) providing DiffServ based QoS to packet flows by the aggregate of packet flows using the VoIP call session information at the time of VoIP packet forwarding by the routers.
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Abstract
The present invention provides a method of providing Differentiated Service (DiffServ) based Quality of Service (QoS) to Voice over Internet Protocol (VoIP) packets through a router. In the QoS providing method, VoIP call session information including source and destination IP addresses, source and destination user datagram protocol (UDP) port numbers, and requested QoS information is provided to the QoS control server by the VoIP call control device. Source and destination routers are found using the VoIP call session information and the VoIP call session information requiring provision of QoS is sent to the source and destination routers by the QoS control server. The present invention can recognize VoIP packets, provide QoS to the VoIP packets, and transmit voice packets of high quality.
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Citations
5 Claims
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1. A method of providing Differentiated Service (DiffServ) based Quality of Service (QoS) to Voice over Internet Protocol (VoIP) packets through a router in an Internet protocol (IP) network, the IP network comprising routers, a VoIP call control device for performing a call processing function on the basis of a VoIP signal, and a QoS control server for providing QoS, the method comprising the steps of:
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a) providing VoIP call session information including source and destination IP addresses, source and destination user datagram protocol (UDP) port numbers, and requested QoS information to the QoS control server by the VoIP call control device;
b) finding source and destination routers using the VoIP call session information and sending the VoIP call session information requiring provision of QoS to the source and destination routers by the QoS control server; and
c) providing DiffServ based QoS to packet flows by the aggregate of packet flows using the VoIP call session information at the time of VoIP packet forwarding by the routers. - View Dependent Claims (2, 3, 4, 5)
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Specification