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
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FCC and ACTA information
If this equipment was approved for connection to the telephone network prior
to July 23, 2001, it complies with Part 68 of the Federal Communications
Commission (FCC) rules. If the equipment was approved after that date,
it complies with the Part 68 rules and with Technical Requirements for
Connection of Equipment to the Telephone Network adopted by the
Administrative Council for Terminal Attachments (ACTA). We are required to
provide you with the following information.
1. Product identifier and REN information
The label on the back or bottom of this equipment contains, among other
things, an identifier indicating product approval and the Ringer Equivalence
Number (REN). This information must be provided to your local telephone
company upon request. For equipment approved prior to July 23, 2001, the
product identifier is preceded by the phrase “FCC Reg No.” and the REN
is listed separately. For equipment approved after that date, the product
identifier is preceded by “US” and a colon (:), and the REN is encoded in the
product identifier without a decimal point as the sixth and seventh characters
following the colon. For example, the product identifier US:AAAEQ03T123XYZ
would indicate an REN of 0.3.
The REN is used to determine how many devices you may connect to your
telephone line and still have them ring when you are called. In most, but not
all areas, the sum of all RENS should be five (5.0) or less. You may want to
contact your local telephone company for more information.
2. Connection and use with the nationwide telephone network
The plug and jack used to connect this equipment to the premises wiring and
the telephone network must comply with the applicable part 68 rules and
technical requirements adopted by ACTA. A compliant telephone cord and
modular plug is provided with this product. It is designed to be connected
to a compatible modular jack that is also compliant. An RJ11 jack should
normally be used for connecting to a single line and an RJ14 jack for two
lines, see installation instructions in the user’s manual. This equipment may
not be used with coin telephone lines or with party lines. If you have specially
wired alarm dialing equipment connected to your telephone line, ensure the
connection of this equipment does not disable your alarm equipment. If you
have questions about what will disable the alarm equipment, consult your
telephone company or qualified installer.
3. Repair instructions
If this equipment is malfunctioning, it must be unplugged from the modular
jack until the problem has been corrected. Repairs to this telephone
equipment can only be made by the manufacturer or its authorized agents.
For repair procedures, follow the instructions outlined under the limited