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Phone System Overview
The University's phone system is Digital ESSX service provided by
BellSouth Communications. Telecommunications negotiated and consummated
the ESSX Service via a Special Service Agreement Contract with
BellSouth. The ESSX system provides campus extension dialing, numerous
line features, local service, access to the University's primary long
distance service (SUNCOM), and international long distance service via
UF's current inter-exchange carrier, AT&T. BellSouth maintains this
customized, digital, and central office based service. BellSouth
delivers this service to your office via BellSouth's copper and fiber
optic cables and digital line carrier systems terminated in a Nortel
DMS-100 switch. The University currently has approximately 15,000 ESSX
lines. You can identify the University's Administrative ESSX Service by
the following NXX numbers or "prefixes" and ranges:
392-0000 through 9999
846-0100 through 3999
294-0000 through 9999
Departments have five (5) digit dialing or "extension
dialing" between the different prefixes by dialing the last number in
the prefix and then the last four digits of the UF number.
Many departments use this feature rich ESSX Service directly
by employing either single line phone instruments or proprietary
"digital" multi-line capable phones. This type of phone system is
called Single Line Concept simply
because each phone instrument is assigned its own ESSX line
(392/846/294). The advantage of this kind of communications system is
having a low initial installation cost, having the most line features
and capabilities of an advanced system without having the initial
expense (relative), BellSouth has the responsibility in keeping the
system updated via software upgrades, and not having the inconvenience
of housing and maintaining the switching equipment on the department's
site.
Many departments choose to purchase small communications
systems with their additional system features. Many departments require
special features that the ESSX Service does not provide. Thus, electronic key and PABX systems are
required. These systems have higher installation costs because the
department purchases the hardware and software "up front." These
systems are still interconnected with the ESSX Service for the purpose
of provided extension dialing and access to SUNCOM and long distance
services. These systems do have a limited service life as compared to
the Single Line Concept system because the electronic key's and PABX's
hardware and software will eventually fall short in providing adequate
communications service for its owners in time. In some cases, these
higher cost systems may save the departments in the medium term due to
fewer ESSX lines terminated in the system if the departments'
communications requirements allow the efficient use of fewer lines.
These ESSX line features are available at the University of
Florida on an optional per line basis and may be ordered by contacted
Physical Plant Division Work Management Center at 392-1121 or E-mail at
workorder@admin.ufl.edu.
If you have a line feature and do not understand its operation, you can
click on the following line features and you will be linked to an
explanation and instructions for each of the line features. If after
reading its explanation further assistance is needed, contact
Telecommunications at 273-1234.
Explanations and instructions are available for:
Single line phones
with code access features.
Single line phones
with features on dedicated keys.
Norstar Key System
phone using feature codes and programmed keys.
InterTel Key System
default features with codes
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