| 释义 |
ring back
回铃
In data communications, a procedure that allows a telephone to be used both for computer connections and normal voice calls. Computer connections require two calls. The first,which is usually only one ring, alerts the modem which will not answer, however, unless the ringing stops for some period, typically 30 seconds.
在数据通讯中，保证一部电话既可用于计算机连接，也可用于正常通话的过程。计算机的连 接通常需要两次呼叫，第一次通常只振铃一次，提醒调制解调器不要回答，除非振铃停止了 一段时间，如30秒。
参阅call back。 |