Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
AddPac Technology Co., LTD
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5
model name(config-sip-ua)# sip-password
password
Specify sip password of the gateway
6
model name(config-sip-ua)# register <e164 |
gateway >
Register the gateway to SIP server
7
model name(config-sip-ua)# exit End configuration
3.8.4. Configuring User Class
Configuration of user-class is used, when the outgoing call to FXO is received from the network,
to reject receiving the call from an unauthorized user. When user-class is not configured and a
user tries a call to a FXO port through the network and the FXO is connected to the extension of
PBX, the user listens to the dial tone generated by the PBX and enters the desired digits of an
extension number. When that FXO is connected to PSTN, the user listens to the dial tone
generated from PSTN switch and enters the other party’s number.
If any of user-class is configured, the user listens to a beep sound instead of the dial tone for the
first call. When password is entered at this time and the call passes, the user can enter digits
up to the number of max-digits which is explicit in the user-class (you may not be able to listen
to the beep sound depending on the gateway in the outgoing side). Consequently, restriction of
extension call, local area call, toll call, international call is possible by adjusting this max-digit.
More than one user-class is available; therefore, setting call limit is possible for other user
classes which are different to each other.
The reason, that the security is needed for the incoming call on FXO, is that there can be a
misuse of unauthorized remote user by the direct call attempt, which is possible through this
FXO port, and the indirect call attempt to PSTN through an extension of PBX is also possible.
The gateway provided 2 type of security system and of the types can described in the following
advantages and disadvantages
security permit-FXO is simple because the remote user doe not need to enter a password. On
the other hand, all the IP addresses of VoIP peer must be registered and can not be registered
together with a gatekeeper and can not perform the call limit to classify the registered peer.
Voice class user many be inconvenient in a way as for the user to enter password digits, but the
security can be stronger and classification of call limit is possible.
Step Commands Description
1
model name# configure terminal Enter configuration mode
2
model name(config)# voice class user tag Enter user class configuration mode
tag is unique identifier for user class
3
model name(config-class)# password digits Set up a password. Digits are the texts
of IA5 (0~9,#,*) with length of 4.
4
model name(config-class)# max-digits value Set a maximum number of digits for an
outgoing call to FXO. It is possible to
configure extension call, local area
call, toll call, international call