Dane the issue seemed to be with a feature on NI-2 called AIN PLMC. As per our switchman, this feature is used for NI-2 features. It rides on the D chanel. 10 digits aren't affected but when doing 1+ or anything over 11 digits, ie 011 ect. the DMS-100 is looking for a preemble to activate enhanced features. Not sure exactly what this means, lol. I'm just a carrier tech who worked on PBXs for 26 years so I got draffted to help translate between our Switchman and the Mitel vendor. We are located a little north of Allentown PA