Brother MFC-3820CN - Manual (Page 73)

5 - 6 SETUP RECEIVE
Advanced receiving operations
Operation from extension telephones
If you answer a fax call on an extension telephone, or an external
telephone in the EXT. jack of the MFC, you can make your MFC take
the call by using the Fax Receive Code. When you press the Fax
Receive Code
51 , the MFC starts to receive a fax. (See Easy
Receive on page 5-4.)
If the MFC answers a voice call and pseudo/double-rings for you to
take over, use the Telephone Answer Code
#51 to take the call at an
extension phone. (See Setting the F/T Ring Time (Fax/Tel mode
only) on page 5-3.)
If you answer a call and no one is on the line, you should assume that
you’re receiving a manual fax.
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Press 51 and wait for the chirp or until the MFC’s LCD displays
Receiving, and then hang up.
Your caller will have to press Start to send the fax.
For Fax/Tel mode only
When the MFC is in Fax/Tel mode, it will use the F/T Ring Time
(pseudo/double-ringing) to alert you to pick up a voice call.
If you're at the MFC, you can lift the handset to answer.
Lift the external telephone's handset, and then press Hook to
answer.
If you’re at an extension phone, you’ll need to lift the handset during
the F/T Ring Time and then press
#51 between the pseudo/double
rings. If no one is on the line, or if someone wants to send you a fax,
send the call back to the MFC by pressing
51 .