| 摘要 |
<p>Several techniques for reducing the amount of time between initiation of a terminal request through a dial-up telephone line and the actual initiation of transactions between the terminal (10) and a host computer (32). By using a ring down or hotline circuit configuration, dialing and call setup time can be saved. With the ring down use no login procedure is necessary to ensure secure access to the host computer (32). The ring generation period is shortened to just an interval sufficient to allow the host modem (30) to recognize the ring, with the ring indication period also being shortened. The modems (12, 30) can be set to fixed baud rates, but in a more preferred embodiment the terminal modem (12) transmits the orginate carrier prior to the host modem (30) picking up the line. The host modem (30) then senses the originate carrier quickly and provides the answer carrier. The silent interval prior to operation of the host modem (30) is removed. After the carriers are both provided, normal connection to the host computer (32) is made and the transaction completed.</p> |
