Session initiation protocol (SIP)-H.323 video interwork

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United States of America Patent

PATENT NO 8842150
APP PUB NO 20080151037A1
SERIAL NO

11643066

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Abstract

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In one embodiment, a first message for a video call is received from a first end point. The first end point may be communicating using a first protocol, such as H.323. The first message is for a second end point that communicates using a second protocol, such as SIP. The first message may be an early offer in SIP to start a video call. The first message includes media information that is needed to initiate the video call. The media information is stored and may be later used to initiate the video call with the second end point. The stored media information is mapped to one or more messages that are sent to the second end point to initiate the video call using a slow start initiation procedure in H.323.

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Patent Owner(s)

Patent OwnerAddress
CISCO TECHNOLOGY INC170 WEST TASMAN DRIVE SAN JOSE CA 95134-1706

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chu, Paul R Saratoga, US 1 58
Kumarasamy, Parameswaran San Jose, US 37 778

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