V.21,通道2传真软件,ITU-T V.21,嵌入式软件

V.21通道2传真软件

V.21通道2传真软件

GAO V.21通道2传真软件执行ITU-T V.21建议的通道2,该建议提供了对于用在通用电话交换网的300比特每秒双工调制解调器标准。ITU-T V.21建议规定,频移调制要被用来产生和信号数据率相等的调制速率。通道2的象征性的平均频率是1750Hz。通道2应被用来传送从被呼叫站到呼叫站的校验信号和服务信号,而不考虑数据传送的方向.

V.21通道2传真软件的特征

更多关于传真中继信息,请看 GAO's Fax Relay Software.

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