Sony computer User Manual

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Make sure the telephone cable is securely plugged into the Modem jack on the computer and the wall jack. 

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Make sure the telephone cable is working. Plug the cable into an ordinary telephone and listen for a dial tone. 

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Make sure the telephone number the program is dialing is correct. 

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Make sure the software you are using is compatible with the computer's modem. (All preinstalled Sony programs are
compatible.)