Oki OKIFAX 5780 User Manual page 84

Primary Telephone Number (LOC#)
This is the main number.
The main number can be up to 40 characters long.
Alternate Telephone Number (ALT#)
If the main number is busy or does not answer, the machine
automatically dials this alternate number.
The alternate number can be up to 40 characters long.
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84 OKIFAX 5780/5980
Communications Speed
The available settings are 33.6 K, 28.8 K, 14.4 K, 9.6 K, and
4.8 K.
The default setting is 33.6 K.
If the machine you are communicating with is an older fax
machine, and you are having problems communicating with
it, try adjusting the speed to a lower setting.
Echo Protection State
The available settings are ON or OFF.
The default setting is OFF.
If you are experiencing problems communicating with a
remote location in a very noisy telephone area, or with an
overseas location, set Echo Protection to ON for the one-
touch key assigned to that location.