1-4 CHAPTER 1: TRIPLE MODEM MODULEnegotiated between modems, providing a 16.7% increase in speedover that which can be negotiated using V.32bis. If the modem you arecalling is unable to operate at the same high speeds as your modem,an optimum data transfer rate is negotiated between the two using thedefault configuration settings.When using the higher line speeds made available by V.32terbo, thethroughput rate can be increased further by using the modem’s errorcorrection and data compression facilities. Compression factors remainvirtually unaffected by the increase in line rate, thereby producing a realimprovement in data transmission times over those achieved using V.32bis.