Telephone Quality 电话音质
Poor telephone line quality can hamper transmission speed even further, and some older lines cannot handle 56K at all.
质量差的电话线还会进一步降低传输速度,有些较陈旧的线路根本不能处理56k。
IntroductionIn the communication systems, echo and noise will seriously affect speech communication quality, such as IP telephone, videophone and hand-free digital cell phone systems etc.
引言在通信系统中,例如IP电话、可视电话及免提数字蜂窝电话系统中,回声和噪声会严重影响通信质量。
Because the Telephone Bureau will charge us for the use of the line even if quality of the fax is poor.
即使传真的质量很差,电话局也要向我们收取电话费。
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