busy tone造句

• In communications , a condition that occurs in a network when no circuits are available and a busy tone is returned to the calling part
  在通信技术中,当无线路可用因而有忙音返回给主呼叫用户时网络的一种状态。
• Possible responses includes : accept , interactive voice , busy tone , reject + send sms , divert calls to , record conversation secretly and mute the ringer
  可能的反映包括：接受，交互式语音，忙音，拒接+发送短信，把号码转接到别的地方，秘密记录通话，呼叫静音。
• Journal of computer science and technology , mar . 2004 , 19 : 150 - 157 . 11 don towsley , james kurose , sridhar pingali . a comparison of sender - initiated and receiver - initiated reliable multicast protocols
  与这些协议不同的是， rmac引入了busy tone机制来实现可靠组播，从而完全抛弃了使用大量控制帧的方法。
• 14 sun m t , huang l , arora a , lai t h . mac layer multicast in ieee 802 . 11 wireless networks . in proc . the international conference on parallel processing icpp 2002 , 2002
  简言之， busy tone是在数据信道之外的一个控制信道上传输的无线信号，因为busy tone仅要求能够被检测出存在与否，所以传输busy tone的控制信道只需要占用很小的带宽。
• Auto archive fax records daily , auto fax queuing , busy re - dial , completely disengage yourself from manual dialing , paper feeding , redialing for a busy tone . everything can be done at the ease of your finger tips
  传真文档自动保存自动排队自动发送占线自动重拨完全解脱打印手工拨号送纸遇忙重拨等繁复的操作轻松一点鼠标，其它都由服务器自动完成。
• By utilizing the busy tones to realize the multicast reliability , rmac has three novelties : it uses a variable - length control frame to stipulate an order for the receivers to respond , thus solving the feedback collision problem ; it extends the usage of busy tone for preventing data frame collisions into the multicast scenario ; and it introduces a new usage of busy tone for acknowledging data frames positively
  例如， ieee 802 . 11 ,现今应用最广泛的无线mac协议，仅在单播unicast通信方式下提供可靠数据传输服务，而对于组播和广播两种通信方式，它仅传输数据一次，即使数据传输出错，也不会重传。然而近几年来，由于无线网络应用的蓬勃发展，人们逐渐认识到在mac层提供可靠组播服务是非常必要的。