Form 15 displays bay 4 slt 06 cct 01 thru 23 cos13 cor 5 ten1 N4 M2 X4 cpn 10 tr nun 1-23. All fields are the same. All extensions with DID's are in the 400-420 range. Need to understand how to land a DID to an extension and can I have 2 DID's ring at 1 extension?