AddPac VoiceFinder AP2120 User's Guide Page 208

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VoiceFinder AP2120 VoIP Gateway User’s Guide Version 1.00
AddPac Technology Co., Ltd. -
208 -
on the origination side.) In this way, users can control internal calls, local calls,
long-distance calls, and international calls by controlling “max-digit.”
Users can set more than one user-classes and set call limits for other user-classes.
To keep the security of calls incoming to the FXO port through the network,
users can use this command and security permit-FXO in the AP2120. Since it is
possible to directly attempt calls to the PSTN through this FXO port or indirectly
attempt calls to the PSTN through the PBX internal line, unauthorized remote
users can attempt calls as well.
To prevent unauthorized users’ attempting calls, the security shall be kept.
Two security systems that the AP2120 Gateway provides have following
advantages and disadvantages.
With “security permit-FXO” command, remote users does not need to enter the
password so they can easily access the network. However, IP address of the
VoIP peer on the other side shall be registered and the gatekeeper cannot be
used at the same time. Also, it is not possible to bar calls of the registered
peers by class.
With the “voice class user” users need to enter the password digit but stronger
and multi-classed call barring is possible.
Step Command Description
1 Router# configure
Enters into the configuration mode.
2 Router(config)# voice class user
tag
Enters into the user class
configuration mode.
The tag is a user class identifier.
3 Router(config-class)# password
digits
Sets the password. At this time,
digits include IA5 characters (0~9,
#, and *) and the digit length is 4.
4 Router(config-class)# max-digits
value
Sets the maximum number of digits
when generating origination signals
with the FXO. By adjusting the
maximum number of digits, users
can set PBX internal calls, local
calls, long-distance calls and
international calls.
5 Router(config-class)# exit
Terminates the user class
configuration mode.
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