Zarlink's Calling Number Identification Circuits deliver the full range of features, including visual message waiting and calling number information, for POTS and VoIP phones, fax machine and answering systems.
| Part Number | Part Name | Product Preview | Data Sheet | Product Information |
| MT88E39 | Extended Voltage Calling Number Identification Circuit for CLIP and CID applications (Type 1) | |
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| MT88E43 | Extended Voltage Calling Number Identification Circuit 2 | |
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| MT88E45 | Dual Inputs (tip/ring and 4 wire) Extended Voltage Calling Number Identification Circuit for CLIP, CID and CIDCW applications (Type 2) | |
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| MT88E46 | Dual Inputs (tip/ring and 4 wire) Bellcore Compliant Extended Voltage Calling Number Identification Circuit for CID, CIDCW and CWD (Type 2 and 2.5) | |
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