ITU-T’s lead study group on signaling and protocols (SG11) gave a...
ITU-T’s lead study group on signaling and protocols (SG11) gave a preliminary nod to 3 international standards aimed at controlling voice, video, data and other IP session quality across networks. The recommendations Fri. describe ways to ensure allocation of…
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enough next generation network (NGN) resources to a voice or video call, IPTV session, file transfer or other service, Yukio Hiramatsu of NTT, speaking as SG11 chmn., said: “Depending on the service, the required QoS [quality of service] is different.” ITU-T defines performance objectives in 8 QoS classes (CD June 20 p5). Technical specs control physical resources by setting rules limiting delay and packet loss on NGN gateways, switches, routers, access devices and other gear so services work properly, Hiramatsu said. The recommendations can be used on wireless, satellite, fiber, DSL and other technologies, he said. The 3 recommendations are for N. American, Japanese and Chinese requirements.