Samsung IPX-S300B System Description page 59

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The user enters an account code as instructed. The voice announcement system
verifies that a valid account code has been entered.
If the account code entered is valid, IPX-S300B uses the access code received in step
(1) to select a route and makes a call for the external number specified.
If the account code is invalid, IPX-S300B plays an error announcement and terminates
the call.

Authorization Code
Those users restricted from making external calls can make external calls by dialing
the number for the built-in voice announcement system which authenticates external
calls.
When a user restricted from making external calls attempts to make a trunk call by
using a call authentication code, actions are performed in the following order:
The user dials the number for the call authentication system.
IPX-S300B connects the call to the call authentication system.
The voice announcement system plays an announcement for the user to enter a
registered call authentication code.
The user enters a call authentication code as instructed. The voice announcement
system verifies that a valid call authentication code has been entered.
If the call authentication code entered is valid, IPX-S300B temporarily suspends the
external call restriction set for the user.
The user can now dial an access code and an external number and the trunk call will be
made.
The authentication code entered will be saved in the charging data record (CDR),
which can be used for calculating call charges for the user.

DISA User Authentication
When using the Direct Inward System Access (DISA) feature, the user can call IPX-
S300B from outside to get authenticated as instructed by the voice announcement so
that he/she can make a trunk call through the system.
When there is an incoming DISA call, IPX-S300B connects the call to its built-in
DISA user authentication announcement system and plays a voice announcement for
the external caller.
System Speed Dial
This feature allows you to assign a two-digit or longer shortcut number to a phone number
frequently dialed not by individual users but by all users of the system. If a lengthy phone
number is mapped to a System Speed Dial number, users can access the destination just by
dialing the shortcut number.
Local Based Number Translation
IPX-S300B provides Local Based Number Translation, between users' call belonging same
location.
In same location, user can uses virtual extension number.
© SAMSUNG Electronics Co., Ltd.
page 59 of 162