201
The settings for DNS, mail relay and proxy server of the ISP will not be altered
by the fallback. Especially if your ADSL line and the backup line are operated by
different providers, you have to make sure that these services are available in both
configurations.
Fallback uses same account
This switch must be set if the same accounts will be used for dsl and isdn and the
provider refuses a parallel login with an authentication failure. In this case SX-GATE
can only perform a simple DSL test during a fallback phase. There won't be a longterm
stability test and the DSL link will be considered to be available despite of a login failure.
Fallback timeout
With this optional parameter you can force an ISDN hangup several minutes after ADSL
has been tested successfully.
Fallback mail notification
Notifications about a fallback will be sent to this email address.
Alive check using ping to
SX-GATE checks the connection by regularly pinging the addresses from this list. You
can select IP objects, too, however only IP addresses will be used and networks will
be ignored.
14.1.1-B
ISDN
ISDN protocol
Here you can select the appropriate ISDN D channel protocol. If the SX-GATE ISDN
card is connected directly to a socket of your telephone company then all over Europe
you will most likely have to select the Euro-ISDN protocol. Usually the same applies if
SX-GATE is connected to a PBX. However some PBX models use 1TR6 as internal
protocol, even if the public telephone network uses Euro-ISDN. In America you'll have
to select the NI1 protocol.
If the D channel protocol is not configured correctly, no ISDN
connection can be established.
