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NEC COIB(8)-U30 Caller ID Trunk Card(Unused)
This trunk card provides an eight port Central Office interface and also supports the CO Message Waiting Indication feature (R2000 or higher). These cards have transmit and receive pad controls.When the card is set for COID mode, Loop Start trunks and Caller ID trunks are supported. When the card is set for COI mode, Loop Start is supported. Ground Start Trunks are not supported. Caller ID is not supported in COI mode. SKU: 750451