Ok now we are getting somewhere, First you set Modules Types to Loop Start and T1 Module in General Parameters. Then set up your T1 Parameters to match the provider. Then go into T1 Channel Mapping and you will see that 4-19 have been assigned as T1-E&M (T1 uses lines 4-19). Then go into DID Mapping Table and enter the 3 or 4 digit number to the station to receive that DID (at the bottom of the screen you will see how to set up 3 or 4 digits).
If you are using all 16 channels I would put them in Hybrid mode and give the rest of the stations 880. You will have to assign the lines 4-XX to station 10 or it will come in on the Intercom
Your DID's will come in on those lines,pools, to the stations,call groups, hunt groups that you have assigned them to.
Basicly the T1 lines will come in like a Channel bank after you have got all the programming done.