dB with higher speed connections), plus a digital connection to the ISP which has exactly one Analog-to-Digital conversion (the codec in the line card for your line at the Telco switch) between you and the ISP. V.90/92 modems preferentially connect in V.90 mode if they cannot they automatically fallback to V.34. High-end connection speed of V.34 and low end of V.90/92 overlap. To determine if the modem is in V.90/92 mode
