Sharp AJ-5030 Mode D'emploi page 21

we recommend that you install surge protectors for the power and telephone
lines. Surge protectors can be purchased at most telephone specialty stores.
Attach trays
Extension phone (optional)
If desired, you can connect an extension phone to the TEL. SET jack
on the Color MFP.
To connect an answering machine to the Color MFP, see page 98.
Setup
TEL.
SET
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