From: Steven M. Sowell (ssowell@xxxxxxxx)
Date: Fri Mar 01 2002 - 22:14:31 GMT-3
The ISDN q.921 and q.931 messaging is designed to communicate from source
end-system to local switch to destination switch to destination
end-system(router) and back. When the router decides to call (due to
interesting traffic) it sends a q.931 call request to the switch which
response with a "call proceeding" message and forward the request toward the
destination router, which recieves an "incoming call setup request" from its
local switch. So the short answer is "No" you can't connect Cisco ISDN
routers back to back. I use an actual ISDN switch in my lab($$$), but the
archives and recent posts have some relatively inexpensive simulators.
Stee
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Michael Jia
Sent: Friday, March 01, 2002 4:45 PM
To: Ccielab@Groupstudy. Com
Subject: ISDN BRI back to back
Hi,
Is anyone know if it is possible to connect ISDN BRI back to back without a
switch?
The following link seems to hint it is possible.
http://www.cisco.com/warp/public/793/access_dial/8.html
Also, I was told "isdn net" can make a BRI act as the network side.
What is it mean?
Do we have to buy a ISDN switch simulator?
Thanks
-- Michael Jia
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