Network Design and Case Studies, Vol II, page 763: "The dialer in-band command is not required with ISDN. PRI and BRI interfaces are assumed by the router to be a DDR interface." In my experience this is not true. That IOS will require you to configure "dialer in-band" even for ISDN interfaces, in order to configure certain DDR commands it will require that "dialer in-band" be configured first. Perhaps this was only an issue in 11.2 trains, because alot of my lab uses 11.2. Can someone shed some clarity on this? Brian ----------------------------------------------- Special: Catalyst 3100 switch & 2503 router blade $1000.00 (16MB / 8MB)!!! I'm buying / selling used CISCO gear!! email me for a quote Brian Feeny,CCDP,CCNP+VAS Scarlett Parria [EMAIL PROTECTED] [EMAIL PROTECTED] 318-222-2638 x 109 318-222-2638 x 101 Netjam, LLC http://www.netjam.net 1401 Oden St. VISA/MC/AMEX/COD Suite 18 Cisco Channel Partner Shreveport, LA 71104 Fax 318-221-6612 _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]