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Adtran 4200321L2 Chassis
and PSTN lines
Supports up to 220 IP phones or 100 IP phones with an E1 line
Iwatsu IX-12KTD-3 12 Button Digital Phone
The Avaya 5420 provides 8 keys along with a large display that labels the keys
ESI IVX 482 1st Gen Port Expansion Card (5000-0257) Condition:Refurbished Adtran 4200321L2 ChassisESI IVX Port Expansion Card Description: The ESI IVX S Class 482 1st Gen is a port expansion card designed for the IVX 42 S Class and C Class phone systems. The ESI IVX S Class 482 first generation features four analog CO lines (FXO POTS), eight digital extensions, and two analog extensions. Please Note: This card is not compatible with the 56S system. If running the 56S you must use the ESI IVX S Class 56S 2nd Gen 482 Expansion Card (5000 0294). ESI
