Avaya Definity TN763 C-D Card (TN763 C-D) | Definity TN 763
- Provides 4 ports for on-premise trunk applications such as music-on-hold, loudspeaker paging, code calling, and recorded telephone dictation access
- Each port has T, R, SZ, SZ1, S, and S1 signal leads
- Trunk uses loop-start on tip and ring with 1-way in, 1-way out, or 2-way 2-wire transmission
- Two additional pairs of leads provide seizure and answer supervision and/or make busy information
- The TN763C supports recorded announcement equipment and Code Calling
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