Hmmm,

I always just follow the docs in folio and never have problems. I didn't know that selecting DID/TIE changed to loop tie. I usually use T1 E&M, not exactly sure why, just habit.

Just out of curiosity, have you tried changing your IMAT settings to DMS100 instead of NI2? I had a situation a couple weeks ago where I had to do this to connect to another PBX that said they were NI2.

Simon