Out of 28 Ratings

Owner's of the AT&T Telephone 1040 gave it a score of 4.0 out of 5. Here's how the scores stacked up:
  • Reliability

    3.96 out of 5
  • Durability

    4.07 out of 5
  • Maintenance

    4.12 out of 5
  • Performance

    4.04 out of 5
  • Ease of Use

    3.9 out of 5
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Intercom operation
Intercom overview
This 1040 telephone is fully compatible with any AT&T Four-Line Small
Business System Speakerphone 1070 or 1080 phones you may 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
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 will not receive a page.
An intercom call rings at the destination extension with a repeating double-ring
A single-phone page automatically activates the speakerphone on the receiving
phone. You can deactivate the speakerphone by lifting the handset.
NOTE: If a line is in use, pressing [INTERCOM] will place the line on hold
and activate the intercom (page 26).
Lets any two extensions connected to line 1 ring
each other (page 26).
Basic intercom operations
Lets you announce over the speaker of the
destination phone (page 29).
Lets you announce to all phones in the system at
the same time (system-wide page) (page 31).
Lets you connect an intercom call with an
outside line (page 22).