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CTI论坛
14 年
第二课 异步转移模式ATM基本概念
每一个时隙的速率为一个标准的PCM(Pulse-Code-Modulation)话路64Kbps。每通道时隙的重复频率为Ts=8KHz,即帧周期为125us。如图2所示。通常把若干通话复用 ...
新浪网
5 年
《实况足球PES4》PC版抢先试玩
联网对战方面,最低要求是64Kbps。电话线拨号上网速度是56Kbps,ADSL上网速度是512Kbps到8Mbps,所以电话线拨号上网稍显慢了,其它的宽带应该足够。
CTI论坛
14 年
三、 ATM的QoS和适配层
主要目的是用来模拟电路交换(CSS:Circuit Switching Simulation),能支持N×64Kbps的不变速率话音传送;同时也(仅)支持G.726下的ADPCM的恒比特率压缩 ...
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