Avaya
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AVDEFTN763D-REF
Avaya Definity TN763D Auxiliary Trunk (Refurbished)
Key Features:
- Provides 4 ports
- Each port has T, R, SZ, SZ1, S, and S1 signal leads
- Used for on-premises applications such as music-on-hold, loudspeaker paging, code calling, and recorded telephone dictation access
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