DTMF Tone Decoder Chip for Answering Machines from Mexico
Integrated circuit that decodes dual-tone multi-frequency signals to remotely activate message playback or recording in telephone answering machines. Specifically programmed for answering system remote access protocols. Covered by 8522.90.58 as other parts.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Datasheets must specify DTMF decoding for answering machine remote control functions
• Avoid bulk IC shipments without end-use declaration for answering apparatus
• May be misclassified as general telecom ICs under 8517 parts if not specified