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ISDN - 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 Internet Access
Setup > Dialing to a Single ISP to enter the backup profile.
Due to the absence of the ISDN interface in some models, the ISDN
dial backup feature and its associated setup options are not available
to them. Please refer to the previous part for further information.
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.
Detail for 3G USB Modem Backup -
PPP Client Mode - Click Enable to activate this mode for backup.
SIM PIN code - Type PIN code of the SIM card that will be used to
access Internet.
Modem Initial String - Such value is used to initialize USB modem.
Please use the default value. If you have any question, please contact
to your ISP.
Modem Dial String - Such value is used to dial through USB mode.
Please use the default value. If you have any question, please contact
to your ISP.
PPP Username - Type the PPP username (optional).
PPP Password - Type the PPP password (optional).
Index (1-15) - Set the PCs on LAN to work at certain time interval
only. You may choose up to 4 schedules out of the 15 schedules
pre-defined in Applications >> Schedule setup. The default setting
of this filed is blank and the function will always work.
RIP Protocol
Routing Information Protocol is abbreviated as RIP（RFC1058）
specifying how routers exchange routing tables information. Click
Enable RIP for activating this function.
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Vigor3100 Series User's Guide
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