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    • 3. 发明申请
    • MANAGING EARLY MEDIA FOR COMMUNICATION SESSIONS ESTABLISHING VIA THE SESSION INITIATION PROTOCOL (SIP)
    • 管理通讯会议的早期媒体通过会议启动协议(SIP)
    • WO2013138198A1
    • 2013-09-19
    • PCT/US2013/029990
    • 2013-03-08
    • QUALCOMM INCORPORATED
    • GINDE, Samir, V.
    • H04L29/06
    • H04M3/465H04L29/06H04L29/06027H04L65/1006H04L65/1069H04L65/1096H04M3/42017H04M3/54
    • In an embodiment, a communications device (200; 400) sends (700; 800A; 1000A; 1000B; 1000C; 1100A; 1100B) an invite to a communication session to multiple target devices (200; 400) and receives first (705; 810A; 1105 A; 1105B) and second (710; 800B; 1015A; 1015B; 1110A; 1110B) media streams from first and second target devices prior to receiving a signaling indication that any of the multiple target devices accepts the invite. The communications device selects (710; 805B, 810B, 815B, 820B; 1010A, 1015A; 1010B, 1015B; 1010C, 1015C; 1115A; 1115B) between the first and second media streams based upon (i) information contained in a first packet of the first or second media streams and/or (ii) signaling information that indicates a forking context for the communication session. The communication device plays (720, 735; 825B; 1025A; 1025B; 1115A; 1115B) the selected media stream prior to receipt of the signaling indication. In another embodiment, after sending (900) the invite, the communications device detects (935) a network address and port information from (i) a media stream from a target device, and (ii) from a signaling message. The communication device sends (940) media to the target device based on the detected information.
    • 在一个实施例中,通信设备(200; 400)向多个目标设备(200; 400)发送(700; 800A; 1000A; 1000B; 1000C; 1100A; 1100B)到通信会话的邀请,并接收第一(705; 810A ; 1105A; 1105B)和第二(710; 800B; 1015A; 1015B; 1110A; 1110B)在接收到所述多个目标设备中的任一个接受所述邀请之前的信令指示之前,来自第一和第二目标设备的媒体流。 通信设备基于(i)包含在第一和第二媒体流的第一分组中的信息来选择第一和第二媒体流之间的(710; 805B,810B,815B,820B; 1010A,1015A; 1010B,1010B,1010C,1015C; 1115A; 1115B) 第一或第二媒体流和/或(ii)指示通信会话的分支上下文的信令信息。 在接收到信令指示之前,通信设备播放(720,735; 825B; 1025A; 1025B; 1115A; 1115B)所选择的媒体流。 在另一个实施例中,在发送(900)邀请之后,通信设备从(i)来自目标设备的媒体流以及(ii)信令消息中检测(935)网络地址和端口信息。 通信设备基于检测到的信息将(940)媒体发送到目标设备。