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
of 74
The telephone does not
ring when there is an
incoming call.
Appendix J
In case of difficulty
• Make sure the ringer is on (page 14).
• Make sure the telephone line cord(s) and the
power adapter are plugged in properly (see the
installation guide).
• There may be too many extension telephones on
the telephone line to allow all of them to ring
simultaneously. Try unplugging one phone at a
time until the phones start ringing.
• Test a working telephone at the same telephone
jack. If another telephone has the same
problem, the problem is in the telephone jack.
Contact your local telephone company (charges
may apply).
LOW BATT is displayed on
• No spare battery is installed or the spare battery
needs to be replaced.
• Remove and re-install the battery.
• If you are on a conference call with another
telephone in the same system (page 22), the call
cannot be transferred.
• If the destination telephone is on an outside call
or intercom call with another system telephone,
the call cannot be transferred.
• All extensions must have the same outside telephone
line connected to Line 1.
• Make sure the telephone line cord connected
to line jack L1/L2 was provided with the tele-
• Check to make sure that each telephone set has
a unique extension number. If the sets receive
AC power at the same time, either at initial
installation or after a power failure, the
extension numbers may be the same. Refer to
the EXTENSION NUMBER section on page 32 of
the installation guide.
I cannot transfer outside