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Voice Modems

voice modems If you've done much with modern cellphones, you've probably noticed just how odd the architecture can be around audio. Specifically, I mean call audio: modern smartphones have made call audio less of a special case (mostly by just becoming more complicated in general), but in older phones you would often find arrangements where the cellular modem 1 had direct analog audio to the microphone and speaker, perhaps via some switching to share amplifiers.

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