发明名称 |
Method for calling video communication service by video communication terminal and associated message data form |
摘要 |
The invention discloses a method for calling video communication service by video communication terminal. The method comprises the steps of: (a) a first video communication terminal launches a call to a multipoint control unit (MCU) and sends an conference information needed for convening a conference to the MCU through an In-Band channel established between both sides; (b) the MCU convenes the conference according to the conference information received. The invention also discloses a message data form for transferring information through an In-Band channel in a video communication service. The message data form comprises: a data starting mark field, a data type field, a data length field, a field for no less than one piece of sub-information, a data ending mark field and a cyclic redundancy check field.
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申请公布号 |
US2003147357(A1) |
申请公布日期 |
2003.08.07 |
申请号 |
US20030373062 |
申请日期 |
2003.02.26 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD |
发明人 |
ZHANG YUFENG;ZHANG LIQUAN;LIN YANQING;FANG LIU;LI JUN |
分类号 |
H04L12/18;H04M3/56;H04N7/15;(IPC1-7):H04Q11/00 |
主分类号 |
H04L12/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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