Specifications

Music-on-Hold systems allow you to play recorded music to callers
while they are on hold. (Alternatively, the system supports a Tones on
Hold feature. For more information, see “Music/Tones On Hold ” in
Chapter 5.)
Extra alerts are strobes, lights, chimes, horns, or bells that light or ring
when calls come in. They can connect to either en extension jack or a
line jack. AT&T offers several compatible alerts.
Doorphones allow visitors to ring a specific extension (or all system
extensions) by pressing a button on the doorphone; the person who
answers a doorphone call can then speak with the visitor at the
doorphone. The system supports the AT&T PARTNER Doorphone, which
can be installed indoors or outdoors.
In-Range Out-of-Building (IROB) protectors are required to prevent
electrical surges from damaging your system when phones are installed
in another building, but on the same continuous property. The system
supports the AT&T IROB protector, which provides coverage for up to
1,000 feet (305 meters) for system phones and 3,000 feet (915 meters) for
standard phones.
Off-Premises Range Extender (OPRE) allows you to connect a standard
touch-tone phone beyond 3000 feet (915 meters) in another building on
the same continuous property. It also allows you to use a special circuit
from your local phone company to provide off-premises station capability.
Repertory dialers allow you to store frequently used numbers for
one-touch dialing. If a user needs many speed dial numbers, a repertory
dialer can be combined on an extension with a system or standard phone.
Headsets allow users to hold hands-free conversations. A headset is a
combination earphone and microphone worn on the head, useful for
receptionists, salespeople, or others who may want to have their hands
free while talking on the phone.
Specialty handsets are designed for those individuals who need greater
functionality than that provided by the handsets on system phones and
standard phones. For example, an amplified handset is available for
certain system phones for hard-of-hearing users.
These devices can be ordered through AT&T—see “Product Ordering
Information” in Appendix D. Refer to the manufacturer’s instructions packaged
with the device for installation and usage information. In addition, Appendix C
provides general guidelines for installation.
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1-4 Overview