AT&T/Lucent/Avaya TN731B Circuit Card

Refurbished Avaya Definity TN716B V2 Interface 1 Card

Refurbished Avaya Definity TN748B V2 Tone Detector Circuit Card

Refurbished Avaya Definity TN793 V2 24-Port Analog Circuit Pack

Refurbished Avaya Definity TN754C V2 4-Wire DCP Digital Line Circuit Pack

Avaya Definity TN762B Hybrid Line Circuit Pack

Refurbished Avaya Definity TN731 Maintenance Pack Circuit Card

Refurbished Avaya Definity TN754B V2 Digital Line Card