an autopatch, sometimes called a phone patch, is a feature of an amateur radio (or other type of two-way radio) repeater to access an outgoing telephone connection. users with a transceiver capable of producing touch tones (dtmf signals) can make a telephone call, typically limited by settings in the autopatch module to be only to toll-free numbers, such as local calls or toll-free "800" numbers.
this feature is primarily used by radio amateurs to provide emergency telephone connectivity to places that have lost their telephone network access. an amateur radio operator with a transceiver installed in their vehicle may provide telephone network access from dozens or hundreds of miles away, depending on the frequencies of the involved repeater, the power of the transceiver, and the gain of the antennas on both ends.
in the united states, autopatch users are required to hang up if music is played while on hold, as the federal communications commission regulations prohibit any kind of music (even if incidental, unless part of an audio transmission from a space shuttle mission) on amateur radio frequencies.
电话自动转接(autopatch)有时也称之为“电话转接(phone patch)”,是业余无线电或其它双向无线电中继台的一项功能，此功能可以访问外部连接的电话系统。使用者可以用一台能够产生双音多频信号的无线电收发信机打电话，典型的电话转接模块设置是限定只能拨打免费电话号码，例如本地电话或800免费电话号码。
这一功能主要是业余无线电爱好者在那些已经失去电话网络的地方用来提供应急电话的通联。业余无线电爱好者操作人员用一台车载无线电收发信机可以在几十英里或上百英里之外提供对电话网络的访问服务，这取决于所使用的中继台频率，无线电收发信机的功率，以及两端的天线增益。
在美国，如果在电话等待接通有音乐播放时，要求电话自动转接的使用者要挂断电话。因为联邦通信委员会的法规禁止任何形式的音乐（即使是偶然的，除非是来自航天飞机发射传输音频的一部分）在业余无线电频段播放。
所以autopatch译成“电话自动转接”是否合适，还请高人指点。
谢谢。
73 de bg9brh.
