The Avaya IP500 Analog Trunk Card 4 V2 provides 4 additional analog trunk ports on your Avaya IP Office system. Avaya IP500 Analog Trunk 4 Features Connects to IP500 base card – When connected to IP500 base card, it provides 4 loop-start analog trunk ports Also provides DTMF, caller ID (ICLID), busy tone detection Adjustable…