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Home › DTMF tone detection and suppression with application to computer telephony over packet switched networks

DTMF tone detection and suppression with application to computer telephony over packet switched networks

US Patent 6226303 · Granted May 1, 2001

Estimated economic value: $8,400,000 ⓘ

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DTMF tone detection and suppression with application to computer telephony over 2002
DTMF tone detection and suppression with application to computer telephony over 2002