ISDN on Siemans Switch(CO) & Nortel ARN Router

[netmanrick]

Hello:
We are playing the ISDN game with a Telco(It Still Don't Work).
Telco has a Siemans EWDN co switch.We have a Nortel ARN router with a s/t BRI module in slot.
We have verified this setup with another Telco(T1 & BRI ISDN) work ok.
Siemens web site is vague about Nortel equipment.We have laid the problem in the Telco's lap:either resolve it or we go to another Telco.
I am just curious about this Siemans switch.We have had no problems with Bell,Verizon,Sprint,and the other mom & pop
carriers.

Any other folks with like problems??

Rick Harris
SC Dept of Motor Vehicles
Network Operations