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PBR with ISDN failover

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  • PBR with ISDN failover


    Can anyone help me with an example configuration for PBR with ISDN failover?

    Here's what I'm trying to do:

    I have an 1801 router. Basically when the ADSL falls over I would like ISDN to come up. If the ADSL is down for some time but there is no activity on the ISDN I would like the ISDN to drop until such times as
    A. there is more interesting traffic on the ISDN in which case the ISDN comes up (assuming the adsl is still down) or
    B. The ADSL comes back up.

    I had something working using Dialer watch but I could never get the ISDN line to drop if I left my ADSL wire unplugged for a certain amount of time which would obviously have led to large telephone bills.

    Any help would be greatly appreciated.