Brother MFC 990cw - Manual (Page 75)

Telephone and External devices
63
7
Multi-line connections (PBX)
7
We suggest you ask the company who
installed your PBX to connect your machine.
If you have a multi line system we suggest
you ask the installer to connect the unit to the
last line on the system. This prevents the
machine being activated each time the
system receives telephone calls. If all
incoming calls will be answered by a
switchboard operator we recommend that
you set the Receive Mode to Manual.
We cannot guarantee that your machine will
operate properly under all circumstances
when connected to a PBX. Any difficulties
with sending or receiving faxes should be
reported first to the company who handles
your PBX.
Note
Make sure the Telephone Line Type is set
to PBX. (See Setting the Telephone Line
Type on page 60.)
External and extension
telephones
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
telephone, the LCD shows
Ext. Tel in Use.
Note
Please make sure you use an external
telephone with a cable no more than 3
metres long.
1
2