AT&T 1070 User Manual

79

About a fax machine 

You may wish to use a fax machine with your 
phone. Choose line 3 or 4 for the fax machine, 
and connect it according to the manufacturer’s 
instructions for installation and use.

•  That line’s telephone number is your fax 

number.

•  The same line can be used for outgoing calls, 

(incoming faxes get a busy signal when the line 
is in use).

•  Set your fax machine to answer on the first ring 

(follow manufacturer’s instructions).

•  To prevent the fax line from ringing at all the 

extensions, turn the ringer off for that line at 
other extensions (see 

RINGER ON/OFF on 

page 33).

1.

 Do not connect a fax machine to line 1. Doing 

so interrupts the telephone’s intercom data 
channel.

2. If you are using a fax switch, or a fax machine 

with a built-in fax switch, see 

switch, below.

Using a fax switch
A fax switch lets the telephone know, before the 
phone rings, whether an incoming call is a voice 
call or a fax call. Some fax machines have a built-
in fax switch. Using a fax switch may affect the 
operation of the LINE lights or other system 
features.