发明名称 GROUP CALL CAPABILITY QUERY
摘要 <p>The present invention relates to a system and a method for handling multimedia conference calls in a telecommunication network. In order for a first terminal (111) in a group (110) to determine the capabilities of at least on other terminal (112-114) in the group (110), a query message can be sent to the other terminal (112-114). When using SIP (Session Initiation Protocol), the query is performed by the method of sending an OPTIONS message. A limitation with this method is that each terminal (111) in the group needs to send a query to all the other terminals (112-114) in the group in order to determine the capabilities of each other. The invention comprises a common server (100) which is adapted to collect information about the capabilities for the terminals (112-114) in the group and to determine a common set of capabilities which is sent to the first terminal (111).</p>
申请公布号 WO2008140391(A1) 申请公布日期 2008.11.20
申请号 WO2008SE50449 申请日期 2008.04.21
申请人 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);HOLM, JAN;STILLE, MATS 发明人 HOLM, JAN;STILLE, MATS
分类号 H04L29/06;H04N7/15 主分类号 H04L29/06
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