Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-05-23
2006-05-23
Pham, Chi (Department: 2667)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
Reexamination Certificate
active
07050422
ABSTRACT:
A method for communicating real time media data between a first client and a second client across a packet switched data network is provided. The method includes receiving an indication of a first client network address for use as a destination network address for sending media datagrams to the first client. A media datagram originated by the first client is also received. A comparison between the first client network address and a source network address extracted from the media datagram originated by the first client is made. A media datagram is sent to the first client using the source network address if the source network address and the first client network receiving address are not the same and the media datagram is sent to the first client using the first client network address if the source network address and the first client network address are the same.
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Alan B. Johnston, SIP, Understanding the Session Initiation Protocal, 2002, pp. 0-52.
Chang Chen-Huei
Cheng Shih-An
Ju Paul Pay-Lun
Liu Fu-Hua
Xu Charles
Hagan Timothy P. O
Innomedia Pte Ltd.
Ly Anh-Vu
Pham Chi
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