User`s guide

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Before the modems connect…

If your modem doesn't respond to any AT commands,

· Make sure the modem is on.

· Make sure you selected the correct COM port and IRQ in your communications software, and/or in your

Windows Control Panel.

· Make sure the computer is in Terminal mode.

· Type in all upper (AT) or lower (at) case.

· There may be a COM port/IRQ conflict. Refer back to Internal Installation. You will need to remove your

modem from the PC and change your COM port and IRQ settings. Lift the black plastic shunts off

the modem and replace the COM port shunt to 3 and the IRQ shunt to 5. If you change your COM port and IRQ

settings, also make the changes in your software and in Windows.

If your modem displays double characters on your monitor,

· Both your modem's and software's local echoes are on and need to be turned off by typing the command

ATE0<Enter>.

If your modem doesn't go off hook to dial a number or doesn't answer the phone,

· Make sure the phone cord is connect to the jack on the modem labeled TELCO and to a phone wall jack.

· Review your software manual to see what DTR operations are required.

· Make sure that your software has auto answer enabled.