Prontonet User’s Manual v410 103
ProntoNet
MASTER
ProntoNet
SLAVE
ISDN
Backup Line
64 / 128 Kbps
Main Line
IP / X21
ISDN CALL
when Backup
is ON
Backup On
when ISDN
CALL is
received
BOOK EDITOR [01]
{ISDN}IP ENC1 ENC2
Backup configuration
according the phone
book - index 1
As we can see, the ProntoNet configured as MASTER monitors the main line and
it decides when the backup ISDN line must start to work. The ProntoNet SLAVE
only works in ISDN depending on if there is communication by it.
The user must be careful to disable the backup mode
(BACKUP_ENABLE_OFF) to avoid that there was any interference in the
installation and configuration operations of the unit.
V.12.1.1. ProntoNet MASTER operation
As we mentioned before, the ProntoNet configured as MASTER monitors
continuously if the main line is working appropriately once the backup option
has been validated in the menu (BACKUP-ENABLE-ON). The ProntoNet MASTER
decides if the main line is dropped when the audio synchronism has been lost for
the programmed time in TIMER-DOWN option of the menu (10 seconds
minimum).
When the audio synchronism has been lost during the programmed time by the
user (TIMER-DOWN), the unit will be configured in backup mode according the
encoding configuration stored in the index 1 of the phone book. Once it has been
configured, the codec will proceed to call to the programmed numbers in the
same index the number of calls ( one or two B channels) will depend on the
mode that the user has chosen (64 o 128 Kbps) when the unit starts working in
backup mode.
The ProntoNet will try the connection as many times as it will be necessary until
the connection will be established or until it decides that the main line has been
recovered. If the backup is disabled during the calling process or when the ISDN
communication is connected, the unit will proceed to work at IP or X21 mode
independently if the main line is recovered or not.
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