Avaya Definity TN570B Expansion Interface V4 SN: 96DR02132796 #THP31

Refurbished Avaya Definity TN767E V6 Interface Circuit Pack

Refurbished Avaya Definity TN798B V6 Processor With 4MB Flash

Refurbished Avaya Definity TN746B V6 16-Port Analog Line Card

Refurbished Avaya Definity TN794 V14 Network Control/Packet Interface

Refurbished Avaya Definity TN746B V13 16-Port Analog Line Card

Refurbished Avaya Definity TN2182B V4 Tone Clock

Avaya Definity TN777B Network Controller