
Hayes Accura V.90/K56Flex Internal and External Data/Fax Modems None of theprotocols V. What advantages does V. Actual connection speed and throughput of any modem depends on the modulation of the signals, and the quality of that particular connection. The speed of your connection may vary from call to call. Two major factors effecting connection speed for a given modulation are:. Noise on the phone line you may not be able to hear. Distance you are from your central office. The distance may effect the receive ...