Voice dialing server for branch exchange telephone systems

Details Voice dialing server for branch exchange telephone systems Voice dialing server for branch exchange telephone systems

1996-09-30

1999-07-27

Hunter, Daniel S.

Telephonic communications

Audio message storage, retrieval, or synthesis

Voice activation or recognition

379201, 379210, 379216, H04M 164

Patent

active

059303360

ABSTRACT:
The voice dialing server plugs into one or more unused extensions of a branch exchange system to provide each of the users on the system with voice dialing services. To use the system a user simply dials the extension to which the server is attached. The server then prompts the user to supply the name of a party to be called. The name is then looked up in a telephone number dictionary unique to that user. The system then places the telephone call by sending commands to the branch exchange system that simulate the operations a user would perform to connect to an outside line or inside extension and then place the call. The server incorporates a speech processing module having a multistage word recognizer that represents speech in terms of high phoneme similarity values. This representation is highly compact, allowing the word recognizer to perform the recognizer and fine match stages with far less processor overhead than frame-by-frame speech recognizers.

REFERENCES:
patent: H1646 (1997-05-01), Kato et al.
patent: 4878240 (1989-10-01), Lin et al.
patent: 4893335 (1990-01-01), Fuller et al.
patent: 5274695 (1993-12-01), Green
patent: 5369685 (1994-11-01), Kero
patent: 5590186 (1996-12-01), Liao et al.
patent: 5684925 (1997-11-01), Morin et al.

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