A refurbished Avaya IP500 V1 Control Unit.
This is the main processing unit for the IP Office IP500 system. Supports IP Office 5.0 or greater.
It has 4 card slots into which all existing IP500 cards can be inserted.
Compatible with base cards and external expansion modules.
Compatible with 1400, 2400, 5400, 6400, plus 9500 series Digital Phones (configuration and SW level dependent).
Compatible with 1600, 4600, 5600, plus 9600 IP Phones (configuration and SW level dependent).