The interesting point wasn't the timeslots, but their size.
Yes, 2G has fixed time slots, but a slot is used for a lot longer than a single (half?) sample.
Yes, 2G has fixed time slots, but a slot is used for a lot longer than a single (half?) sample.
It needs to send 8KHz audio at much lower bitrates (~14Kbps instead of 64Kbps), and you can't do that with raw PCM if you want decent quality. This means you need lossy compression and a codec, and those need far more than a single sample to work well.
CDMA was similar, not sure what their frame size was exactly, but it was somewhere in the vicinity.