Panasonic CF-52 Series Reference Manual page 58

Modem
Connecting the Internal Modem with a Telephone Jack
CAUTION
Use a surge protector since the modem may be damaged by a sudden high voltage surge that may occur in the event
of a lightning strike.
1
Open the cover (A), and connect the computer and the
telephone jack (B) using the telephone cable
(included) (C).
Hold the cable so that the shape of the connector (D) matches the
port, and insert fully until it clicks.
2
Click [start] - [Control Panel] - [Printers and Other
Hardware] - [Phone and Modem Options] and change
the settings as necessary.
NOTE
Do not enter standby or hibernation during communications.
To remove the cable, press and hold the lever and pull out.
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A