1 - broadband (dsl/wireless) tracking, etc etc
2 - Extended description on invoice for time/data charges
3 - Multiple, named taxes
5 - extended reported and graphing
6 - integrated RT ticketing system
7 - one-time payments (in signup server too). DCRD and DCHK on-demand payment types
12 - cust_pay_refund and credit card refund w/supported processor
14 - proper payment receipts (not invoice copies)