SIP-based feature control

United States of America Patent

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Sep 2, 2003
Grant Date
Sep 12, 2002
app pub date
Nov 8, 1999
filing date
Nov 8, 1999

priority date (Note)
Expired

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Abstract

A system and method for providing an addition to the Session Initiation Protocol is disclosed. The addition is a new field header, preferably entitled 'Feature', that is added to the REGISTER message. This field would contain control information for various feature services, like the Do Not Disturb feature and other services provided by traditional PBX systems.

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Patent Owner	Address
VERIZON PATENT AND LICENSING INC	ONE VERIZON WAY BASKING RIDGE NJ 07920

International Classification(s)

G06F:ELECTRIC DIGITAL DATA PROCESSING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Devanathan, Raghavan	Plano, TX	9	352
Donovan, Steven R	Plano, TX	60	1937

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SIP-based feature control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09436793

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PATENT NO	6615236
APP PUB NO	20020129093A1
SERIAL NO	09436793
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 02, 2003	US,6615236,B2 US6615236B2	GRANTED PATENT AS SECOND PUBLICATION
September 12, 2002	US,20020129093,A1 US20020129093A1	FIRST PUBLISHED PATENT APPLICATION

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09436793

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Abstract

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Family

Patent Owner(s)

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Maintenance Fees

Full Text

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