switching 1720 from adsl to isdn

[fffq]

Hi All

1720 with fast eth, adsl wic and isdn wic

Is it posible to set up a 1720 to switch from an adsl wic to an Isdn wic when the ADSL connection goes down and then to revert to the ADSL connection when it comes back up.

Thanks

[rsissons]

You should be able to use the 'backup interface' commands to do this.

[fffq]

Thanks for that I will experiment