Specifications: Calculation Digits: 10
Display Type: LCD
Number of lines in display: 1
Memory Calculations: M+ Only
Number of Memories: 1
Logic: Standard
Number of Functions: 131
Parenthesis Levels: 5
STO, RCL, and ANS Keys: STO & Recall Only
Power Supply: Battery
Specifications: Compatible only with IP500 V2 control unit running IPO 8.1 Feature Pack 1 (8.1.63) or higher.
Digital station (DS) ports compatible with Avaya 1400, 2400, 5400, 6400, and 9500 series digital telephones.