Apple Express Fax/Modem - Manual (Page 152)

6 Type ATH1 and press Return (or choose the Dial command of your application).
If the modem is properly connected to the telephone line, you’ll hear a dial
tone. You can then type ATH0 to hang up (or choose the hang up command of
your communications software).
7 If you don’t hear a dial tone, test your telephone line by connecting a working telephone
and cord to the line.
Plug the telephone into the wall jack to verify the dial tone. If there is none,
you will know the telephone line is the source of the problem.
8 If you hear a dial tone on your telephone but not through your modem, test your
modem’s telephone cord by connecting it to the wall jack and to the telephone.
If there is no dial tone, the telephone cable is the source of the problem.
Return it to your dealer for replacement.
9 If your modem still has no dial tone, see the service and support information that came
with your computer for a number to call.
WARNING If your modem needs repair, take it to an authorized Apple
service provider.
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