telephony [təˈlɛfəni]

例句:

• These optical fibres may be used for new sorts of telephony.
  这些光缆可以用于新型电话通讯系统。
  来自柯林斯例句
• Advanced telephony operations involve substantial amounts of signals, status events, and message - passing.
  高级电话操作包括稳定的信号 、 状态事件和信息传输总量.
  
• You can provide telephony information for the end user.
  您可以为最终用户提供电话信息.
  
• In mobile telephony a channel is a pair of frequencies.
  来自BBC
• He added that his company also provides customised telephony applications on board.
  来自BBC
• One has the impression that the country does not produce anything else, that it is just mobile telephony.
  来自VOA