Electrical computers and digital processing systems: multicomput – Computer conferencing – Demand based messaging
Reexamination Certificate
2003-10-09
2011-10-11
Bhatia, Ajay (Department: 2445)
Electrical computers and digital processing systems: multicomput
Computer conferencing
Demand based messaging
C358S400000
Reexamination Certificate
active
08037138
ABSTRACT:
In a communication apparatus corresponding to an analog communication path of a voice band and a network communication path, high-speed and high-reliability data communication are performed by selecting an appropriate communication path without troublesome user operation. A communication apparatus which performs IP communication and analog communication via an ADSL gateway obtains the IP address of a destination station from an SIP proxy server and transmits/receives communication data to/from the destination station on an IP network by a file transmit/receive protocol such as FTP, HTTP or the like, when the telephone number of the destination station corresponds to a VoIP network. The apparatus performs analog facsimile communication on a line switching network when the telephone number of the destination station does not correspond to the VoIP network. The apparatus performs the analog facsimile communication on the VoIP network or the line switching network when the destination station corresponds to the VoIP network but does not have any digital communication means.
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Bhatia Ajay
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Lee Bryan
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