One of the first commands you can use to debug ISDN issues (ie are you getting anything from the ISDN switch) would to debug isdn q921. You should get SAPI's from your ISDN switch...something like below (dont forget to have term mon if you telnet to your router)
Feb 19 11:21:27 GMT: ISDN Se3/0:15: TX -> RRp sapi = 0 tei = 0 nr = 0 Feb 19 11:21:27 GMT: ISDN Se3/0:15: RX <- RRf sapi = 0 tei = 0 nr = 0 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63337&t=63313 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
