Currently I have a XTS that is single line heavy and may have been set-up for tenant service. This was installed by another vendor several years ago. They at one time had a T-1 which is not being used. Now we have 5 analog trunks. I've put these into TRKGP-2 and programmed lines and station for COS-1. I'm unable to access lines from some slt's. Trunk group access seams to be 2 digits 81, 82 not 801,802. 88+XXX works on some trunks but not all. Were have I gone wrong. Any help would be appreciated.

Thanks,
Al