Avaya IP Office IP500 V2 ETR-6 Extension Module 700476039

The ETR-6 Card provides 6 ETR (PARTNER ACS telephone) Station ports (Ports 1-6). Has support for (1) of these optional Daughter Cards: ATM-4 or PRI/T1. When an ATM-4 is added, ports 7-8 become Power Failure Transfer ports, and ports 9-12 provide 4 additional CO Line Ports. The ETR-6 is only supported on the IP Office Essential Edition - Partner Version system.