Avaya IP Office 500:

Avaya IP Office 500 DVD User and Admintrator Set Release 6.0 ETR6 Base Card (IP500v2 / Essential Edition - PARTNERŪ Version only) IP Office Release 6.0 provides support for a new ETR6 base card on the IP500v2 platform. This provides support of the PARTNERŪ system ETR (Enhanced Tip and Ring) telephones and allows existing PARTNERŪ ACS customers to migrate to an IP Office solution. The ETR6 base card will only be supported in the IP500v2 and only when it is running in PARTNERŪ Version mode.