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Glossary
This glossary is intended to better serve you in determining
all your voice, data and telecommunication equipment needs.
If you have any additional questions or any of these terms
need clarification, please call our Customer Service Department
at 215.348.1588.
Remote Maintenance
aka: Remote Diagnostics. You have a problem with the phone
system you own. Instead of sending a technician out to
your site, the service company dials your PBX from a data
terminal or PC to find out what's wrong with it. Sometimes
the problem can be fixed on-line. If not, the service company
would have to dispatch a technician. To do remote maintenance,
you will need a phone line dedicated to the PBX and a modem
on either end.
RJ-21X
Telephone companies call the 25-pair Amphenol connector
used as a demarcation point the RJ-21X.
RJ-48C
An 8 position keyed plug most commonly used for connecting
T1 circuits. The RJ-48C has four wires – two for
transmit and two for receive. The T1 circuit connects to
the RJ-48C. Then the RJ-48C gets connected to your phone
system.
Router
Routers are the central switching offices of the Internet
and corporate Intranets and WANs. The main provider of
routers is Cisco. A router, in its strictest terms, is
an interface between two networks.
Session Initiated Protocol (SIP)
Conferencing and Telephony sessions over IP-based networks.
Smart Jack
Device used to test integrity of T1 circuits remotely
from the central office. Installed on the customer premises,
the Smart Jack is completely passive until activated remotely
by a digital code.
Squared Key System
A key system that has all telephone lines appearing on
every telephone, and each phone has a separate button/key
for each line.
Stations
Another word for a telephone.
Switch
A mechanical, electrical, or electronic device that opens
or closes circuits, completes or breaks an electrical path,
or selects paths or circuits. A switch looks at incoming
data (both voice and data) to determine the destination
address. Then, based on that address select its path.
Telephone Application Programming Interface (TAPI)
Allows Windows Applications to program telephone-line-based
such as single and multi-line telephones, modems and fax
machines in a device independent manner. TAPI essentially
makes installation easy and allows many applications to
work with many telephones.
Terminate
To connect a wire conductor to something, typically a
piece of equipment.
Trunk
A communication line between two switching systems. The
term switching system typically includes equipment in a
central office (the phone company) and PBXs. A tie trunk
connects PBXs. Central Office trunks connect a PBX to the
switching system at the central office. .
Turn-Key System
An entire phone system with hardware and software assembled
and installed by a vendor and sold as a total package.
The term "turn-key" means the buyer is given
a key to the thing he has just bought. He turns the key
and the system will do everything it is supposed to do.
Most telephone systems are purchased Turn-Key.
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