DTMF Tone Decoder from Japan

Dual-Tone Multi-Frequency decoder extracts dialed digits from telephone line audio signals. Designed for telephonic apparatus connection, under HTS 8543.70.60.00.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• ITU-T Q.24 DTMF signaling compliance documentation

• FCC emissions testing for line-connected devices

• Emphasize telephony audio decoding function