Refurbished Avaya Definity TN748B V2 Tone Detector Circuit Card

Refurbished Avaya Definity TN731B V2 Maintenance Pack Circuit Card

Refurbished Avaya Definity TN754B V2 Digital Line Card

Avaya Definity TN798B Processor

Avaya Definity TN762B Hybrid Line Circuit Pack

Refurbished Avaya Definity TN777B V23 Network Controller - R6 and earlier

Refurbished Avaya Definity TN798B V4 Processor With 4MB Flash

Refurbished Avaya Definity TN746B V13 16-Port Analog Line Card