Avaya Definity TN753
8 Port DID Trunk Card
The Avaya TN753 interfaces up to 8 wink-start or immediate-start direct inward dialing (DID) circuits from your local service provider.
- 8 ports for immediate or wink-start direct inward DID trunks
- Each port has tip and ring signal leads
- Supports A- and μ-Law companding with vintage 17 or greater
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