No, you can't back-to-back ISDN. You'll need a simulator or a pbx. Search this group for discussions about using Asterix - a linux based pbx.
magpie wrote in news:%U01e.6311$4%3.2836 @fe2.news.blueyonder.co.uk:
ISDN Router
Mar 26, 2005
3 Replies
I have 2 cisco 1603 isdn routers and a catalyst 3500 xl switch .
I wiash to use these to mess around before my fanial ccna exam . Can i connect the BRI interfaces using a xover cable and ppp.
Id like to use them for routing vlans etc and also routing between eachother. They have BRI , 10mb ethernet.
Any other suggestions welcome.
Ken
If you cannot afford a simulator a cheap alternative which gives you most but not all of the fuctionality is a AUX back to back connection.
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checkout on google for PBX4Linux
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