Avaya IP500 700417439 PRI 1 Daughter Card (Refurbished)The Avaya 700417439 can be added to an IP500 Digital Station card, IP500 Analog Phone Card, or IP500 VCM Card. It allows that card to then also support primary rate digital trunk connections. The PRI is configurable for T1, E1, or E1R2 MFC use depending on the territory. Maximum 4 per IP500 Control Unit. Key Features: Mfr. Part #: 700417439 Only 8 channels are enabled by default 1 PRI Trunk port Connections via Ports 9 and 10 of the host IP500 Base