Out of 17 Ratings

Owner's of the AT&T Conference Phone ATT993 gave it a score of 3.8 out of 5. Here's how the scores stacked up:
  • Reliability

    3.82 out of 5
  • Durability

    3.81 out of 5
  • Maintenance

    3.88 out of 5
  • Performance

    3.76 out of 5
  • Ease of Use

    3.56 out of 5
of 79
The system
does not receive
caller ID or the
system does not
display caller
ID during call
Difficulty storing
numbers in
Make sure you subscribe to caller ID with call waiting
features services provided by the local telephone
The caller may not be calling from an area which
supports caller ID.
Both you and the caller’s telephone companies must
use equipment which are compatible with caller ID
If you subscribe to DSL service, you need to have a DSL
filter installed. Contact your DSL service provider for a
DSL filter.
Make sure you are pressing the correct sequence of
buttons for storing numbers in one touch locations. See
One touch operation beginning on page 39.
Make sure all plugs are connected properly. Inspect the
line cord connections at the modular jack(s) and at the
Make sure you have reviewed all of the voice mail
message(s). If you have reviewed all of the voice mail
message(s) and the NEW CALL light remains flashing,
your phone may have received a false signal from your
voice mail service provider. If you have no new voice
mail messages follow the directions in Turn NEW CALL
light off on page 25.
Problems with
LINE lights
light flashes