IP telephone and IP telephone call method

Details IP telephone and IP telephone call method IP telephone and IP telephone call method

2004-08-11

2008-12-30

Smith, Creighton H (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C358S402000, C709S230000

Reexamination Certificate

active

07471672

ABSTRACT:
An IFAX IP telephone connects a call to an opposing IFAX IP telephone via the Internet, and executes a voice call process that exchanges voice packets with the connected opposing IFAX IP telephone. When transmitting an image data to the opposing IFAX IP telephone during the voice call to the same telephone, an IFAX packet is generated, the packet having the opposing IFAX IP telephone as the destination. The IFAX packet is transmitted, while prioritizing the voice packet transmission.

REFERENCES:
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patent: 6614891 (2003-09-01), Toyoda et al.
patent: 7136475 (2006-11-01), Rogers et al.
patent: 2004/0057568 (2004-03-01), Kawabata et al.
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patent: 2006/0242242 (2006-10-01), Ezumi et al.
patent: 1419368 (2003-05-01), None
patent: 10-2004-0023961 (2004-03-01), None
English language Abstract of Korean 10-2004-0023961. Oct. 2004.

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