Brother MFC-3820CN - Manual (Page 70)

SETUP RECEIVE 5 - 3
Setting the F/T Ring Time (Fax/Tel mode only)
If you set the Receive Mode to Fax/Tel, you’ll need to decide how long
the MFC will signal you with its special pseudo/double-ring when you
have a voice call. (If it’s a fax call, the MFC prints the fax.)
This pseudo/double-ring happens after the initial ringing from the
phone company. Only the MFC rings and no other phones on the
same line will ring with the special pseudo/double-ring. However, you
can still answer the call on any extension phone (in a separate wall
jack) on the same line as the MFC. (See Operation from extension
telephones on page 5-6.)
1
If it is not illuminated in green, press ( Fax ).
2
Press Menu/Set , 2 , 1 , 2 .
3
Press or to select how
long the MFC will ring to alert you that you have a voice call (20,
30, 40 or 70 seconds).
Press Menu/Set .
4
Press Stop/Exit .
Even if the caller hangs up during the pseudo/double-ringing,
the MFC will continue to ring for the set time.
2.F/T Ring Time