ISDN Switch Simulator on the Cheap?

smartmux wonders: "I've starting working on earning a CCNA certification, and part of the requirement for this cert and the 'professional' level cert is to know and understand how to install ISDN BRI circuits. Getting the Cisco router equipment to configure is easy and relatively cheap, but real ISDN lines or an off-the-shelf ISDN simulator is way too expensive. I'm not a *nix guy, so I thought I'd ask here -- is it possible to take an old PC, a couple of ISDN network cards, and an open-source PBX (like Asterick maybe) and make a simple ISDN switch to let my two routers talk?"

Re:Just take the fucking test...

[Scuff]

The CCNA exam has questions that are done on a simulator to simulate configuration or troubleshooting on a router. Most of the ISDN involved on the exam is theory, but he could be asked to show practical knowledge as well.

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[account_deleted]

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Re:Complain to Cisco

[karnal]

Ever hear of a PRI T1?

ISDN is still highly used, to this day. In fact, our videoconferencing bridge allows all sorts of connectivity options - one of which we use is multiple "bonded" ISDN channels. So we can get 384k out of 6 channels...