Operating instructions

TROUBLESHOOTING AND ONLINE HELP RESOURCES
102
PROBLEM DIAGNOSIS POSSIBLE SOLUTION
The computer or
software will not
recognize the
modem (cont.).
The modem
displays double
characters on
your monitor.
The modem
won’t go off
hook to dial or
doesn’t answer
the phone.
You may have a COM
port/IRQ conflict
(cont.).
Both the modem’s and
software’s local
character echoes are
probably turned on.
You may have plugged
your modem’s phone
cord into a digital line.
You might have a bad
phone cord connection
to your modem.
You may have devices
between the modem and
the phone jack.
You may have a poor
line connection.
Make sure you have the correct COM port and IRQ settings in your software and/or in the
Windows Device Manager.
Disable Local Echo in your software OR on your modem (not both). You can turn the local
echo off on the modem by typing ATE0 and then pressing ENTER in your software’s terminal
mode. To turn the local echo off in the software, refer to its documentation.
Plugging your modem’s phone cord into a digital phone line can damage the modem. Call your
phone company if you are unsure whether or not your phone line is digital.
The phone cord should be plugged into the TELCO jack on the modem and the wall phone
jack. The phone cord should be no longer than 12 feet in length. Use the phone cord included
in your Sportster box if possible.
There should be no line splitters, fax machines, or other devices between the modem and the
wall jack.
Place the call again. Calls are routed differently each time. To verify a valid phone
connection, enter RapidComm’s Terminal mode, type ATX3DT8479855092 (the U.S.
Robotics BBS), and press ENTER. This string bypasses the dial tone, allowing a connection if
the modem is functioning properly.