Like the title says, I've been trying to connect my Arduino Uno to an Aztech Turbo 2 voice modem (not sure about the chipset it uses - the included AT Command reference manual is for "for RCV56ACx, RCV336ACx, RCV288ACx and RCV144ACx Modems") to use it as a voicemail. All works well until I issue the…

Connecting Arduino to a 56k voice modem and recording audio.

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