Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
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3.10.3.17. pstn-backup-port
To configure FXO port to pstn-backup-port, use this command. To disable this feature, use the
no form of this command.
pstn-backup-port slot/port
no pstn-backup-port
3.10.3.17.1. Syntax
Keyword / Argument Description
This command has no arguments and keywords.
3.10.3.17.2. Command Default
Disabled
3.10.3.17.3. Command Modes
Voice-port configuration
3.10.3.17.4. Usage Guidelines
3 causes of busyout state for gateway are to follow:
First power supply is suspended.
Second, the link is down on LAN interface of the gateway
Third, the link is down on gatekeeper, MGC or proxy server, so the gateway can not be connected.
SIP proxy server does not have a feature to detect busyout. Hunt feature can be used when
voip-peer connection fails. Hunting can be carried out by the pots-peer which is configured to
PSTN-backup-port.
VoIP call can not be made when the gateway is in busyout state. The telephone network can be
opened continually through PSTN.
When PSTN backup feature is used, enable busyout monitor in voice-service-voip configuration
mode.
If PSTN port presents in the gateway, no need to configure the feature. If the gateway has only
FXS port and FXO, enable “PSTN-Backup-port” on FXS port. By using this feature, you can
make FXO port to work as PSTN.