Invention Grant
US08284918B2 Media specific feature invocation signaling in enhanced communication systems
有权
增强型通信系统中的媒体专用特征调用信令
- Patent Title: Media specific feature invocation signaling in enhanced communication systems
- Patent Title (中): 增强型通信系统中的媒体专用特征调用信令
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Application No.: US12356291Application Date: 2009-01-20
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Publication No.: US08284918B2Publication Date: 2012-10-09
- Inventor: Srivatsa Srinivasan , Sundaram Anantharaman , Gene Y. Zhang
- Applicant: Srivatsa Srinivasan , Sundaram Anantharaman , Gene Y. Zhang
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Merchant & Gould P.C.
- Main IPC: H04M3/42
- IPC: H04M3/42
Abstract:
Subscribers of an enhanced communication system are enabled to indicate invocation or clearing of media specific features such as music-on-hold or video-on-hold. The invocation or clearing is transmitted to participating end points as a Session Initiation Protocol (SIP) re-INVITE message with Session Description Protocol (SDP) attribute descriptions identifying the feature, applicable media channels and whether the message is for invocation or clearing of the feature.
Public/Granted literature
- US20100183136A1 MEDIA SPECIFIC FEATURE INVOCATION SIGNALING IN ENHANCED COMMUNICATION SYSTEMS Public/Granted day:2010-07-22
Information query
