Used for Call Accounting (SMDR), Property Management System (PMS), Hotel-Printer and Message Center Interface (MCI). Uses 2 Application Time Slots CCIS CENTRALIZED SMDR/MCI PZ-M537 expands Buffer (1600 - 27000) RS-232C: Synchronous One Port, Asynchronous Three Ports AP Number 4-15 & 20-31 Lower AP Hwy |