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Enable/ Disable
ISDN Dial Backup
Setup
Keep WAN
Connection
VigorIPPBX 2820 Series User's Guide
Click Enable for activating this function. If you click Disable,
this function will be closed and all the settings that you
adjusted in this page will be invalid.
This setting is available for the routers supporting ISDN
function only. Before utilizing the ISDN dial backup feature,
you must create a dial backup profile first. Please click ISDN >
Dialing to a Single ISP to create the backup profile.
Note: This feature is available for ISDN 2 port only.
None - Disable the backup function.
Packet Trigger -The backup line is not on until a packet from
a local host triggers the router to establish a connection.
Always On - If the broadband connection is no longer
available, the backup line will be activated automatically and
always on until the broadband connection is restored. We
recommend you to enable this feature if you host a web server
for your customers' access.
Normally, this function is designed for Dynamic IP
environments because some ISPs will drop connections if there
is no traffic within certain periods of time. Check Enable
PING to keep alive box to activate this function.
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