CSS Interface Categories:

Call Accounting	In Room Movie - Posting
PBX	On-Screen Video Check Out
Voice Mail	Credit Card Authorization (Detail)
Point of Sale	Sales & Catering
Card Key Lock System	Mini Bar
Energy Management	High Speed Internet Access
Central Reservations System 1 Way	Time & Attendance
Central Reservations System 2 Way	Payroll Direct Deposit

CSS offers interfaces for most popular Hospitality Management Subsystems, and on a variety of different Hardware Platforms. We interface to most popular Vendors of these Subsystems, and their various Models and Versions.  

If you are interested in a Subsystem type that is not listed above, let us know and we will research what is required to make it happen.