| 释义 |
answer tone
应答音
In data communications on PSTN lines, a tone (2100Hz in Europe and 2025Hz in the U.S.) that can be sent by answering equipment to disable echo suppressors and to notify an operator or equipment at the other (originating) end to connect data to the line.
在公共电话交换网(PSTN)线(路)上的数据通信中的一种特定频率的音调(在欧洲为2100赫 兹,在美国为2025赫兹),它由应答设备发送用于禁止回声抑制和通知原发端操作员或设备将 数据连到线(路)上。 |