Avaya, AT&T, Lucent, Definity TN765 Processor INTFC V22

Avaya Definity TN793CP HV5 24-Port Analog Circuit Pack

Avaya TN793CP HV5 24-Port Analog Circuit Pack 700306517R

AVAYA TN793 ANALOG LINE V6 24-PORT CIRCUIT BOARD

AVAYA TN793CP ANALOG LINE HV9 700394729 24-PORT CIRCUIT BOARD

AVAYA TN793CP ANALOG LINE HV5 700306517 24-PORT CIRCUIT BOARD

TN765 Avaya Definity Processor Interface Circuit Pack

Avaya Definity TN2181 V4 16-Port Digital Circuit Pack Lucent AT&T