IT industry giant Cisco has VoIP business as one of three big mainstream business in Chinese market based on its mature and advanced telecommunications network cannot but admit that Cisco products have very strong competition strength of Cisco VoIP solution variety of functional QOS Qualityof Service) technology in the end-to-end end to end network running on time delay sensitive business such as VoIP provides technological guarantee for Cisco different version of the IOS provides a variety of ways to realize QOS in IP backbone net such as Early detection and RED Random Early detecting Early then Detect and weighted WRED CQ custom queue priority queue PQ IP forwarding priority in general configuration such as VoIP networks need from global integrated whole network conditions to determine what party
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