USRobotics V.34 User Manual
Page 27
COURIER HIGH SPEED MODEMS
2-8 External Modem Set Up
5. As a final check, make sure the modem gets a dial tone.
Type the following Dial command:
ATD
On receipt of the command, the modem goes off hook and
waits for a dial tone. The OH indicator lights up, and you'll
hear the dial tone from the modem's speaker. To cancel the
operation, press any key.
Troubleshooting
If you don't hear the dial tone, first increase the volume by
sliding the volume control switch towards the front of the
modem. If that doesn't work, check to see that the phone
cable from the wall jack is connected to the correct jack on
the modem (See Figure 2.3). If necessary, reconnect the
phone cable correctly. Then try the Dial command again,
ATD