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Avaya Definity 7434 D01 Phone
Large LCD Display
✔ Full functional testing (display
Dual headset jack for agent and supervisor
22 buttons
Avaya Definity TN420C Tone Detector Card (Refurbished) Lucent Avaya Definity 7434 D01 PhoneAvaya Definity TN420C Tone Detector Card. More Information Detects and analyzes tones on the Time Division Multiplexing (TDM) bus Provides two Network Processing Elements (NPEs) with eight channels that provide four Dual Tone Multi Frequency (DTMF) receiver ports, two general purpose tone detector ports, and two digital loop around ports TN420C replaced by TN2182B and TN744D
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