Oki F0305 User Manual page 23

Connecting an external phone
Plug the supplied line cable adapter into the PHONE 2 jack and plug an external
phone's line into the line cable adapter.
External phone
(even an answering machine)
PHO NE1
PHO NE2
LIN E
Modular cap
L & I
ayout
1-7
nstaLLatIon
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A