Oki 87 - Manual (Page 47)

Dial Directories 35
Chain Dialing
Each fax number that you enter or program into your MFP machine can
be up to 40 digits long. when it is necessary to dial a number which is
longer than 40 digits, use the chain dial feature.
To create a chain dial number, program the first 31 digits of the number
into a One-Touch key or Auto Dial number. Then press the 8/+ One-Touch
key to make this a chain dial number. Next, program the rest of the
number into another One-Touch key or Auto Dial number (or, you can
leave the second part of the number unprogrammed and enter it manually
on the numeric keypad).
To use a chain dial number, select the One-Touch key or Auto Dial num-
ber programmed with the first part of the chain dial number. The display
shows PRESS OT/AD/SRCH KEY. Then select the One-Touch key or
Auto Dial number programmed with the second part of the chain dial
number. If the second part of the chain dial number was not programmed,
enter it manually on the numeric keypad. Press the START key to begin
sending the fax.