DTMF Tone Decoder from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• ITU-T Q.24 DTMF signaling compliance documentation
• FCC emissions testing for line-connected devices
• Emphasize telephony audio decoding function