Operation From External And Extension Telephones; Using Extension Telephones (U.k. Only) - Brother MFC-J6920DW Basic User's Manual

Operation from external and
extension telephones
If you answer a fax call on an extension or an
external telephone, you can make your
machine take the call by using the Remote
Activation Code. When you press the Remote
Activation Code l 5 1, the machine starts to
receive the fax.
If the machine answers a voice call and fast
double-rings for you to take over, use the
Remote Deactivation Code # 5 1 to take the
call at an extension telephone. (See F/T Ring
Time (Fax/Tel mode only) on page 56.)
If you answer a call and no one is on
the line:
Assume you are receiving a manual fax.
Press l 5 1 and wait for the chirp or until the
Touchscreen 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 57.)
Telephone and external devices
Using extension telephones
(U.K. only)
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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. The most obvious is inadvertent
interruption of a facsimile transmission
caused by someone picking up an extension
telephone to make an outgoing call. Also, the
remote activation code feature may not
operate reliably in such a simple
configuration.
This machine may also be set to make a
7 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). 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 "telephone off-hook
detection."
The inadvisable configuration is shown in
figure 1, and the recommended master/slave
configuration is shown in figure 2.
This new connection configuration can be
arranged by contacting BT, Kingston upon
Hull Telecommunications, your PBX
maintainer or a qualified telephone
installation company as appropriate. Simply
explained, the extension telephone circuit
should be terminated on a normal modular
plug (BT 431A style), which in turn should be
put into the modular socket of the white
"T"-shaped connector provided as part of the
line cord assembly.
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