09-26-2003 ----------- If you replied to the following post, please resend your reply. Due to our system shurdown I lost all the emails. Thanks. Kirti ---------------------------- Hello List: Just to remind again that I am a newbie and it is my first attempt to configure 3COM TC. For the last 10 days, I am trying to configure a 3 Com Chassis (1-HiPer NMC, 2-Hiper ARC & 10-Hiper DSP). When I connect the incoming PRI/ISDN line (23B + 1D Channel) to a DSP Span, the PRI/ISDN line goes down. When I try to dial the line, a Telco message "All lines busy now. This is a temporary condition..." is announced. The same line works fine when connected to Ariel RS4200 modem bank. Ariel RS4200 settings are: (1) Phone Number: 727-9809 This is the dial-in number (2) Protocol: ISDN Choices are ISDN & RBS (3) Protocol Var: Nortel DMS-100 Choices are NI-2, AT&T 4ESS, AT&T 5ESS & Nortel DMS-100 (4) Line Coding: B8ZS Choices are AMI & B8ZS (5) Framing Format: ESF Choices are ESF, ESF-Suppression & D4 (6) LBO: 0dB Choices are 0dB, -7.5dB, -15dB, -22.5dB (7) CSU: ENABLE Choices are ENABLE & DISABLE I think HiPer DSP has setting numbers: 3, 4, 5 & 6 and I have set them up correctly. I have called Telco (Sprint) and they do not want to talk about it. I need help in determining which setting I am missing or entering wrong. I hope I get few suggestions because I plan to work tonight & tomorrow to fix this problem. Wish me good luck! Kirti Kirt Bajwa TIB Computer Systems Mountain City, TN 37683 Tel: (423) 727-3001 eMail: kbajwa@tib.com