25
Intercom operation
Intercom overview 
This 1080 telephone is fully compatible with any AT&T Four-Line Small 
Business System Speakerphone 1070 or 1040 phones you might have installed. 
You can use a total of 16 1080/1070/1040 phones together as extensions in 
your phone system.
Each individual phone in your telephone system MUST be assigned a unique 
extension number for the intercom feature to work. See EXTENSION NUMBER 
on page 32 of the installation guide for instructions.
This intercom features both a single-phone page and a system-wide page 
(PAGE ALL).
A single-phone page alerts only one phone. A system-wide page (PAGE ALL) 
alerts all system phones. Any phone with the Do Not Disturb (DND) feature 
activated does not receive the page.
An intercom call rings at the destination extension with a repeating double-ring 
pattern.
A single-phone page automatically activates the speakerphone on the receiving 
phone. You can deactivate the speakerphone by lifting the handset.
 NOTES: 
If a line is in use, pressing [INTERCOM] places the line on hold and 
activates the intercom (page 24).
If you subscribe to DSL service, please read the section on Important 
information for DSL users beginning on page 6 of the installation guide 
for information about minimizing problems with this phone caused by DSL 
signals.
•
•
Lets any two extensions connected to line 1 ring 
each other (page 26).
  Operation:
Basic intercom operations
Function:
  INTERCOM
Lets you announce over the speaker of the desti-
nation phone (page 29).
  PAGE 
Lets you announce to all phones in the system at 
the same time (system-wide page) (page 31).
  PAGE ALL
Lets you connect an intercom call with an 
outside line (page 33).
  CONFERENCE