Efficient Decoding of Digital Dtmf and R2 Tone Signalization
نویسنده
چکیده
In this paper the implementation aspects of decoding digital DTMF and R2 signalization tones are analyzed. First, a short review of specifications for DTMF and R2 signalization, proposed by ITU-T is made, following by short review of decoding techniques applied in practice. Finally, a new computationally efficient method is proposed and experimentally verified. This method has distinct advantages in multichannel decoding systems and permits decoding in both signaling systems.
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