Simple telephone intercom circuit diagram
Source: InternetPublisher:zht24 Keywords: Walkie-talkie machine circuit diagram BSP mobile phone Updated: 2020/06/08
With this circuit , the injunction phone can function as an intercom . The old rotary dial type telephone probably works best here. Furthermore, the phone can only be powered this way.
![Very simple telephone<strong>walkie-talkie</strong> circuit](http://www.eeworld.com.cn/circuit/upload/08a19dc5994059d6daaa898ded0ca166/2d965413b4614a3604ee9632a13fc3ca.gif)
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