Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
AddPac Technology Co., LTD
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3.10.6.28. security permit-FXO
Security must consider for an outgoing call going through FXO port of this system to PSTN or
PABX. When security permit-FXO feature is disabled, the call originated from an unauthorized
user in a remote side is to be dropped.
To allow all the calls directing toward FXO when session-target is set to RAS of the gatekeeper,
use this command. To enable security, use the no form of this command. Then all the calls with
deregistered IP address to VoIP peer are not allowed.
security permit-FXO
no security permit-FXO
3.10.6.28.1. Syntax
Keyword / Argument Description
This command has no arguments or keywords.
3.10.6.28.2. Command Default
Permit all the calls
3.10.6.28.3. Command Modes
Voice service configuration
3.10.6.28.4. Usage Guidelines
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 which is 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