VC-to-DTMF interfacing system and method

Details VC-to-DTMF interfacing system and method VC-to-DTMF interfacing system and method

2006-08-15

2006-08-15

Tran, Sinh (Department: 2646)

Telephonic communications

Echo cancellation or suppression

C379S088040, C379S088180

Reexamination Certificate

active

07092515

ABSTRACT:
A voice command (VC)-to-DTMF interfacing system that allows existing DTMF-driven systems to be interacted with by a caller using voice commands. The VC-to-DTMF interfacing system translates the voice command from a caller into the DTMF codes which are then played through a port for receipt by the DTMF-driven system. In a first mode, the voice commands from the caller and the pre-recorded messages of the DTMF-driven system are echo cancelled. In a second mode, a voice message is directly streamed to the DTMF-driven system through an enabled port patch.

REFERENCES:
patent: 6601031 (2003-07-01), O'Brien
patent: 6757379 (2004-06-01), Lane
patent: 2002/0090066 (2002-07-01), Gupta et al.
patent: 2002/0097848 (2002-07-01), Wesemann et al.
patent: 2003/0021394 (2003-01-01), Krack
patent: 2004/0218737 (2004-11-01), Kelly

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