Message controller that replaces phone ringtones with voice
Source: InternetPublisher:明天见 Keywords: Telephone telephone circuit message controller Updated: 2021/07/20
This phone is a schematic circuit diagram of a voice message controller that replaces telephone ringtones with speech chip ISD1016. The controller can store messages, music, a song or other sounds to replace the monotonous ringing tone.
![message control machine](http://www.eeworld.com.cn/circuit/upload/ce7f16b63456d4e365a44caa6050ddfe/9cd021087e1e08a8dc38448153ee46dd.jpg)
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