isdn bri line problem

[dragec]

One of my isdn lines stoped working, it is ISDN backup. Until moday I cannot get any info provider or central side router admin. Does anyone can see from attached debug what could be problem?

thanks!

[jackyoung]

Can't find the reason (unknown reason) from the capture. Check below link may help :

http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1917.htm

You can also try to enable the "debug ppp negotiation" and "debug ppp authentication" if you use PPP in this link.

Hope this helps.