Paul you and I could go at this for awhile. I think were both saying the same thing, but from different perspectives. Now again I'm talking AT&T to LEC, not switch to end user. All our T-3's were B8ZS..for all the issues you've stated. Very seldom would be find a DDM in the LEC misoptioned, it did happen but not often. It could easily be found with the test you mentioned, all zeros was our main one cause we were suppose to get B8ZS..you could send all 1's to verify AMI. I'd still like to know what trouble the end user was actually experiencing here to try to help on the trouble.
