Hi, I am guessing this has already been asked before, but I thought I would ask anyway.
I am wanting to simulate ISDN connection in GNS3 environment. Has anyone achieved this ? Or similar config though serial interface (rather than BRI interfaces).
Cheers

IIRC, even with real equipment, you need an ADTRAN or some other ISDN simulator to do this. Something has to simulate the telco side of the ISDN or POTS DDR setup.