DTMF control

Details DTMF control DTMF control

2006-11-28

2006-11-28

Chan, Wing (Department: 2614)

Telephonic communications

Special services

Call diversion

C379S221020, C370S352000, C370S354000

Reexamination Certificate

active

07142658

ABSTRACT:
A method of selectively sending a DTMF tone from a terminal to a first or a second destination, wherein the terminal sends a signal comprising at least one DTMF tone to an intermediate module prior to distribution to the intended destination, comprising: receiving the signal at the intermediate module;analyzing the nature of any DTMF tones in a portion of the received signal to determine the intended destination thereof; and sending a DTMF tone corresponding to the DTMF tones in the received signal to the determined destination.

REFERENCES:
patent: 5165096 (1992-11-01), Matsumoto
patent: 5341415 (1994-08-01), Baran
patent: 5438618 (1995-08-01), Jantzi et al.
patent: 5781626 (1998-07-01), Koue
patent: 6009152 (1999-12-01), Bourhis
patent: 6208638 (2001-03-01), Rieley et al.
patent: 6408067 (2002-06-01), Robinson
patent: 6456618 (2002-09-01), Kozdon et al.
patent: 6584094 (2003-06-01), Maroulis et al.
patent: 6650662 (2003-11-01), Arnaud et al.
patent: WO 93/03570 (1993-02-01), None

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