- 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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