USER’S GUIDE
REV AAA
TELEPHONE EXCHANGE
Definitions:
Extension (Internal line): :
Owner of each telephone that has been connected to the exchange.
Extension number (Internal line number):
The inner-exchange phone number that should be dialed in order to call another phone
that has been connected to the exchange. The extension numbers are in the range 11-16.
Operator:
Owner of the first telephone that is connected to the exchange. The operator (the
extension with number 11) can perform some special operations, in addition to the entire
operations that can be done by other extensions.
External number:
The number to be dialed upon access to the lines of the exchange when external calls
are to be made, which has been taken from the local telephone operator.
Line number:
When one attempts to make an external call, it is the number of a line of exchange to be
dialed, if one wishes to select one of the lines. Line numbers are 1 and 2.
Service Explanations:
Within this guide, the services are both described by symbolic pictures and the things to
be done have been explained in text, item by item. As can be seen, the last item of some
services has been given as “Hear the internal dial tone.” At that point, the extension that
receives the internal dial tone can either hang up or can start to use another service.
In case one of the items listed in the explanations is skipped or incomplete, the service
may not work as desired. If the service is not working as desired, even though the entire
items have been executed one by one, then source of the problem may be searched in
the notes section in explanations. Apply your authorized reseller, if the solution is not in
the notes section.
Moreover, for the services that ends with the statement “
g
Replace the handset.”, if the
extension has the authorization to use the key “
*
” (Apply to your system supervisor for
that authorization.), then s/he can carry out the same operation by pressing the key “
*
”,
instead of replacing the handset. Besides, the extension will directly receive internal dial
tone and will be able to make use of any other service s/he wishes.
Abbreviations:
:
Service that can be used with authority level.
:
Service that requires specific programming.
:
Operator only service.
:
Service that requires special hardware.
Dial Tones and Hook Flash:
Information about the tones systems have and their structures are as follows.
Internal dial tone:
It is the tone received when the extension lifts the handset. This tone indicates that a
number can be dialed for any action. The tone is discontinuous by default, but it can be
made continuous through programming.
Ring back tone:
The ring back tone is different for internal and external calls.
For internal calls, it is the tone received when an extension calls another extension and
the called extension is not busy at the moment. It is in the form of 2 short ringing.
On the other hand, for external calls, the ring back tone transmitted by the CO is received.
Busy tone:
The busy tone, which is in the form of short ringing, is the one that shows the called
extension is busy, or if an extension attempts to access a line, then it is the tone which
shows that line or lines are busy at the moment.
Special dial tone :
The special dial tone is a tone that is short, periodic and lower compared to the dial tone
and it indicates that the extension is keeping an extension or line on hold at the moment.
In order to receive special dial tone, one should make hook flash while conversing with
an extension or a line. The extension who receives that tone can resume conversation by
making hook flash again or s/he can make use of features, such as getting information,
which can be used upon receiving the special dial tone. Following the action taken
after the special dial tone has been received, the extension can resume the previous
conversation by making hook flash.
Error tone :
This tone is in the form of three short tones and a long tone and it should not be confused with
the busy tone. This tone indicates that an erroneous action has been taken by the extension.
C.O. dial tone:
It is the tone received upon access to C.O. line. A line number can be dialed upon
receiving this tone.
Hook Flash operation:
It is used for putting a line, over which a conversation is going on, on hold. It is a
quite frequent action taken during use of the exchange. In order to make hook flash,
you should press the on/off latch of your phone for 100-600 milliseconds (this can be
changed through programming.) and then release it. The keys “Flash” or “R” on some
phones can be employed for hook flash operation. Besides, some extensions with tone
dialing phones can be given the authorization to employ the key “
#
” on their telephones
for hook flash, through programming. These extensions can also carry out hook flash
action by pressing the key “
#
” of their telephones.
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