Avaya Site Administration Reference Release 3.1 Manual de usuario Pagina 163

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Avaya Site Administration Reference
153
Understanding trunks
Trunks are communication lines that carry voice or data transmissions between two
communications systems or central offices. There are a variety of trunk types, each with
different capabilities.
Trunks can be characterized by:
Signal type (analog or digital)
Transmission media or wiring type (copper or fiber optic)
Direction (one-way in, one-way out, or two-way)
Connection type:
Central Office to voice system (Public Access Trunks)
Switch to voice system (Tie Trunks)
Switch to long distance provider (Public Access Trunks)
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