Brother MFC5200C Service Manual page 240

Selectors 1 through 3:
Selectors
1 2 3
0 0 0 No WAIT is inserted even if the Pause key is pressed.
0 0 1 If you press the Pause key during dialing, the facsimile equipment will insert
0 1 0 WAIT as defined in the above table.
0 1 1
If the Pause key is pressed repeatedly, the equipment inserts the specified
1 0 0
WAIT multiplied by the number of depressions. It applies also in hook-up
dialing.
1 0 1 When these selectors are set to "1, 0, 1":
1 1 0
Each time you press the Pause key in dialing, the equipment will wait for the
1 1 1
2nd dial tone to be sent via the communications line regardless of pulse
dialing or tone dialing.
When these selectors are set to "1, 1, 0":
If you press the Pause key in pulse dialing, the equipment will first wait for
the 2nd dial tone to be sent via the communications line. After that, pressing
the Pause key will cause the equipment to insert a WAIT of 3.5 seconds. In
tone dialing, the equipment will insert a WAIT of 3.5 seconds.
When these selectors are set to "1, 1, 1":
If you press the Pause key, the equipment will first wait for the 2nd dial tone
to be sent via the communications line regardless of pulse dialing or tone
dialing. After that, pressing the Pause key will cause the equipment to insert a
WAIT of 3.5 seconds.
(In those countries where no dial tone detection function is supported, setting
these selectors to "1, 0, 1," "1, 1, 0," or "1, 1, 1" inserts a WAIT of 3.5
seconds.)
Selectors 4 through 6:
Upon detection of the 2nd dial tone for the time length specified by these selectors, the equipment
starts dialing.
This setting is effective only when the 2nd dial tone detection function is activated by selectors 1
through 3 (Setting 101, 110, or 111).
This function does not apply in those countries where no dial tone detection function is supported.
Selector 7: No. of 2nd dial tone detection times
This selector sets the number of dial tone detection times required for starting dialing.
Selector 8: 2nd dial tone interrupt detecting time
This selector sets the allowable time length of an interrupt which should not be interpreted as an
interrupt in the 2nd tone dialing.
Pause key setting and 2nd dial tone detection
Detection of international tone
App. 4-9