MT88E45 2 equivalent, 4-wire calling number identification circuit 2.
* Compatible with:
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* Bellcore GR-30-CORE, SR-TSV-002476, ANSI/TIA/EIA-716, TIA/EIA-777; ETSI ETS 300 778-1 (FSK only variant) & -2; BT (British .
* Bellcore CID (Calling Identity Delivery) and CIDCW (Calling Identity Delivery on Call Waiting) telephones and adju.
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