External and extension phones; Connecting an external or extension telephone; Operation from extension telephones- Page 64

Brother MFC-660CN User Manual

Table of Contents

USER’S GUIDE MFC-440CN/MFC-660CN
Section II:Fax
background image

Chapter 7

52

External and extension 
phones

7

Connecting an external or 
extension telephone

7

You can connect a separate telephone to 
your machine as shown in the diagram below.

 

1 Extension telephone

2 External telephone

When you are using an external or extension 
phone, the LCD shows 

Telephone

 

(MFC-440CN only) or 

Ext. Tel in Use

 

(MFC-660CN only).

Operation from extension 
telephones

7

If you answer a fax call on an extension or an 
external telephone plugged into the correct 
socket on the machine, you can make your 
machine take the call by using the Fax 
Receive Code. When you press the Fax 
Receive Code 

l

5 1

, the machine starts to 

receive the fax.

If the machine answers a voice call and 
pseudo/double-rings for you to take over, use 
the Telephone Answer Code 

# 5 1

 to take the 

call at an extension phone. (See 

F/T Ring 

Time (Fax/Tel mode only)

 on page 43.)

If you answer a call and no one is on 
the line:

7

You should assume that you're receiving a 
manual fax.

Press 

l

5 1

 and wait for the chirp or until the 

LCD shows 

Receiving

, and then hang up.

Note

You can also use the Fax Detect feature to 
make your machine automatically take the 
call. (See 

Fax Detect

 on page 43)

 

Using extension telephones 
(For U.K. only)

7

Your premises may already be wired with 
parallel extension telephones, or you may 
plan to add extension telephones to your line, 
as well as your machine. While the simplest 
arrangement is a straightforward parallel 
connection, there are some problems with 
this arrangement, the most obvious of which 
is inadvertent interruption of a facsimile 
transmission caused by someone picking up 
an extension telephone to make an outgoing 
call. Also, fax receive code may not operate 
reliably in such a simple configuration.

This machine may also be set to make a 
delayed transmission (i.e. a transmission at a 
pre-set time). This pre-set job may coincide 
with someone picking up an extension 
handset.

These problems can easily be eliminated, if 
you arrange modification of your extension 
wiring circuit, such that extension devices are 
connected ‘downstream’ of your machine in a 
master/slave configuration (see fig. 2 on next 
page). In this configuration the machine can 
always detect whether a telephone is in use. 
Thus it will not attempt to seize the line during 
that time. This is known as â€˜telephone off-
hook detection.’

The inadvisable configuration is shown in 
figure 1, and the recommended master/slave 
configuration is shown in figure 2.

1

2

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  • 43.) If you answer a call and no one is on the line: 7 You should assume that you're receiving a manual fax.

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