This type of card can be added to an IP Office 500 Digital Station card, IP Office 500 Analog Phone card, or IP Office 500 VCM card. It allows that card to then also support up 4 BRI trunk connections, each trunk providing 2B+D digital channels. The card is a 4 port card supporting (8 BRI Channels).
Product also known as:
Avaya 700417421, 700417421, 700417421, IPO 500 TRUNK BRI 8 UNI