Multiplex communications – Special services – Conferencing
Reexamination Certificate
2006-09-05
2006-09-05
Nguyen, Chau (Department: 2616)
Multiplex communications
Special services
Conferencing
C370S352000
Reexamination Certificate
active
07103011
ABSTRACT:
A wireless communication system200comprises a connectionless packet network201coupled to a plurality of sites203–208. Upon a first communication unit (213) initiating a call request for a 2-party call with a second communication unit (215), a call server235identifies respective multicast IP addresses (MC1, MC2) associated with the source and target. If the first communication unit213, or its associated site (205) desires to send payload to the second communication unit215, it addresses the payload to the multicast IP address (MC2) of the second communication unit, and the second communication unit215, or its associated site206joins the multicast address MC2to receive the payload. Conversely, if the second communication unit215, or its associated site (206) desires to send payload to the first communication unit213, it addresses the payload to the multicast IP address (MC1) of the first communication unit, and the first communication unit213, or its associated site205joins the multicast address MC1to receive the payload.
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Dertz Gregory A.
Kumar Surender
Mathis James E.
Sasuta Michael D.
Shaughnessy Mark
Cho Hong Sol
Hughes Terri S.
Motorola Inc.
Nguyen Chau
Saladi Indira
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