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Guangdong Province, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Method for establishing a session between a caller and a callee
Patent number
8,599,831
Issue date
Dec 3, 2013
Huawei Technologies Co., Ltd.
Qingchun Shen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Call control method, communication system, and relevant devices
Patent number
8,335,201
Issue date
Dec 18, 2012
Huawei Technologies Co., Ltd.
Zhiquan Yi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method, system and apparatus for implementing ringback tone service
Patent number
8,295,464
Issue date
Oct 23, 2012
Huawei Technologies Co., Ltd.
Zhifeng Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Call processing method, system and equipment of same number service
Patent number
8,284,767
Issue date
Oct 9, 2012
Huawei Technologies Co., Ltd.
Zhiquan Yi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for replicating ring back tones
Patent number
8,170,194
Issue date
May 1, 2012
Huawei Technologies Co., Ltd.
Qingchun Shen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for replicating ring back tones
Patent number
7,471,783
Issue date
Dec 30, 2008
Huawei Technologies Co., Ltd.
Qingchun Shen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR PROVIDING A CALL SERVICE TO A USER
Publication number
20130017809
Publication date
Jan 17, 2013
Huawei Technologies Co., Ltd
Jian WU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Call Control Method, Communication System, and Revelant Devices
Publication number
20110110298
Publication date
May 12, 2011
Huawei Technologies Co., Ltd
Zhiquan YI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Call processing method, system and equipment of same number service
Publication number
20100220719
Publication date
Sep 2, 2010
Huawei Technologies Co., Ltd
Zhiquan Yi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR REPLICATING RING BACK TONES
Publication number
20090116632
Publication date
May 7, 2009
Huawei Technologies Co., Ltd
Qingchun SHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD, SYSTEM AND APPARATUS FOR IMPLEMENTING RINGBACK TONE SERVICE
Publication number
20080198976
Publication date
Aug 21, 2008
Huawei Technologies Co., Ltd.
Zhifeng Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for establishing a session between a caller and a callee
Publication number
20070071216
Publication date
Mar 29, 2007
Qingchun Shen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system for playing multimedia files
Publication number
20070038778
Publication date
Feb 15, 2007
Huawei Technologies Co., Ltd
Caixia Miao
H04 - ELECTRIC COMMUNICATION TECHNIQUE