Avaya Partner ACS Processor Release 3.0 (Refurbished)Key Features: Mfr. Part #: 108357468 Initial capacity: 3 lines 8 extensions Maximum capacity: 15 lines 40 extensions or 19 lines 8 extensions 2 PC card slots for quick and easy software upgrades Direct connection of analog answering machines, fax machines, telephones and modems Remote administration Auto daylight savings time standard time adjustment 100 system speed dial numbers for fast access to frequently called customers and vendors Music port