PortaNet User Manual
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IX.10.1.2
PortaNet SLAVE operation
If the PortaNet works as SLAVE, the entry or exit to the backup mode will be
guided by different criterions than the defined ones in the MASTER mode. First of
all, it is necessary that the Backup option be enabled.
The unit will work by default in IP mode monitoring the state of the ISDN line
continuously. If an incoming call is detected, the unit will switch to backup mode
automatically. If the call hungs up, the unit will pass to work in IP mode again.
During the backup phase the PortaNet SLAVE goes on sending coded audio
through the main line in order to the PortaNet MASTER can detect that the line
has been recovered.
It is also possible to program call filters in the PortaNet SLAVE in order to avoid
the unit answering unwanted calls.
PortaNet MASTER Backup Configuration
1.- Disable the backup operation: SYS - BACKUP – ENABLE - OFF
2.- Set the PortaNet as MASTER: SYS – MODE - MASTER
3.- Set the timers: SYS – TIMER – DOWN – x sec.
SYS – TIMER – UP – y sec.
4.- Set the backup audio mode and the ISDN numbers:
CONF – BOOK – INDEX 1
5.- Enable the Backp operation: BACKUP – ENABLE - ON
PortaNet SLAVE Backup Configuration
1.- Disable the backup operation: SYS - BACKUP – ENABLE - OFF
2.- Set the PortaNet as MASTER: SYS – MODE – SLAVE
3.- Enable the Backp operation: BACKUP – ENABLE – ON
It is possible to select between the left channel L or L+R as audio source of the
encoder 1, and R or L+R as audio source for encoder 2, when mono mode is
selected for the backup (ISDN) connection.
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