EPBX OR EPBAX IS ELOCTRONIC PRIVATE BRANCH AUTOMATIC
EXCHANGE.... IF AN ORGANISATION OR OFFICE CONTAIN A NUMBAR
OF PHONES AND THEY HAVE TO TALK AMONG THEMSELVES MAINLY
THEN EPBAX IS A MORE BENEFICIARY SCHEME
NORMALY WHEN IN TELEPHONE WE DIAL A NO THEN IT ROUTES TO
TELEPHONE EXCHANGE FIRST AND AFTER THAT PROCEED TO THE
DIALED NUMBER SO EVERY TIME U CALL TELECOM OPERATOR 'LL
CHARGE FOR IT BUT IN CASE OF EPBAX A COMPANY HAS TO PAY FIX
SOME OF MONEY AND OWN A SMALL EXCH WHEN THAT COMPANY PEOPLE
TALK AMONG THEMSELVES THE CALL NEED NOT HAV 2 GO TO
TELEPHONE EXCHANGE N HENCE IS CHEAPER ...
EPBX(Electronic private branch exchange) are Phone systems,
which traditionally run on proprietary special purpose
computers, can run on ordinary servers and workstations,
allowing telephones to work just like any other computer
A private branch exchange (PBX) is a telephone exchange
that serves a particular business or office, as opposed to
one that a common carrier or telephone company operates for
many businesses or for the general public. PBXs are also
referred to as:
PABX - private automatic branch exchange
EPABX - electronic private automatic branch exchange
PBXs make connections among the internal telephones of a
private organization — usually a business — and also
connects them to the public switched telephone network
(PSTN) via trunk lines. Because they incorporate
telephones, fax machines, modems, and more, the general
term "extension" is used to refer to any end point on the
PBXs are differentiated from "key systems" in that users of
key systems manually select their own outgoing lines, while
PBXs select the outgoing line automatically. Hybrid systems
combine features of both.
Initially, the primary advantage of PBXs was cost savings
on internal phone calls: handling the circuit switching
locally reduced charges for local phone service. As PBXs
gained popularity, they started offering services that were
not available in the operator network, such as hunt groups,
call forwarding, and extension dialing. In the 1960s a
simulated PBX known as Centrex provided similar features
from the central telephone exchange.
Two significant developments during the 1990s led to new
types of PBX systems. One was the massive growth of data
networks and increased public understanding of packet
switching. Companies needed packet switched networks for
data, so using them for telephone calls was tempting, and
the availability of the Internet as a global delivery
system made packet switched communications even more
attractive. These factors led to the development of the
VoIP PBX. (Technically, nothing was being "exchanged" any
more, but the abbreviation PBX was so widely understood
that it remained in use.)
The other trend was the idea of focusing on core
competence. PBX services had always been hard to arrange
for smaller companies, and many companies realized that
handling their own telephony was not their core competence.
These considerations gave rise to the concept of hosted
PBX. In a hosted setup, the PBX is located at and managed
by the telephone service provider, and features and calls
are delivered via the Internet. The customer just signs up
for a service, rather than buying and maintaining expensive
hardware. This essentially removes the branch from the
private premises, moving it to a central location.
Epabx is a Electronic Private Automatic Branch Xchange System.
It is System which is useful for big corporation. It is one
time investment. In big corporation everybody wants to talk
with themselves then it is very easy with epabx system to
dial a ext. no. and talk with direct concerned person,
without any cost, bcoz in epabx internal calling is free.
EPBX-Electronic Private Branch Exchange.This is very useful
method for this time.Epbx mainly use in office,Telecom
compny & Five stars hotels.In EPBX We can use a pilot no. of
any telephone company like i.e. BSNL,Reliance,Airtel etc.And
this pilot no. distrubte in multiple ext.By this we can use
a pilot no. for outgoing & incoming to the different ext. in
once a time.EPBX like workinig as internet switch.
when & where we say that here communication electronics
gets involve ?
Difference b/w communication electronics, power
electronics, digital electronics, discrete electronics,
analogue electronics & Mechatronics ?
Where these are used & can be used ?