ISDN simulators

[mulhollandm]

Folks,

I'm looking for a decent isdn simluator, i want to connect two 1721s & simulate an isdn connection.

Any ideas where i could get such a piece of kit?

thanks

[thisisshanky]

I have used Teltone ISDN sims. Basically a 4 port ISDn sim. configurable through a utility (GUI) that comes with it. You can get some for a sub $1000 at ebay.com or at used stuff vendors. Another thing you might want to look at would be Adtran Atlas. This will be more costly, because it has capability to act as frame-relay switch cum ISDN simulator. check out www.adtran.com for more details on atlas. Atlas can be configured using a console cable and hyperterminal.