Simultaneous transmission of voice and data signals over a digital
channel
    47.
    发明授权
    Simultaneous transmission of voice and data signals over a digital channel 失效
    通过数字通道同时传输语音和数据信号

    公开(公告)号:US4476559A

    公开(公告)日:1984-10-09

    申请号:US319690

    申请日:1981-11-09

    Abstract: A transmission system comprises apparatus for the transmission of voice signals only, data signals only, or a combination of both voice and data signals in a multiplexed stream of eight bit time slots over a single, bidirectional digital channel for a point-to-point connection. In the combined mode, the encoded voice signals, using low bit rate voice encoders, are assigned to four bit positions of the eight bit time slot; the data signals are assigned to the remaining four bits. Up to two bit positions normally used for data may be used for signature bits, thereby identifying whether the multiplexed stream comprises voice signals only, data signals only, or a combination of both voice and data signals. Also, a minimum of one "1" bit per eight bit time slot is thereby guaranteed.

    Abstract translation: 一种传输系统包括用于仅通过单点双向数字信道在8位时隙的多路复用流中传输语音信号,仅数据信号或语音和数据信号的组合的装置,用于点对点连接 。 在组合模式中,使用低比特率语音编码器的编码语音信号被分配给八位时隙的四位位置; 数据信号被分配给剩余的四位。 通常用于数据的最多两位位置可以用于签名位,从而识别复用流是仅包括语音信号,仅包括数据信号,还是语音和数据信号的组合。 此外,由此保证每八位时隙中至少一个“1”位。

    Method and system for handling a multi-media call setup request
    48.
    发明授权
    Method and system for handling a multi-media call setup request 有权
    用于处理多媒体呼叫建立请求的方法和系统

    公开(公告)号:US08737968B2

    公开(公告)日:2014-05-27

    申请号:US13262463

    申请日:2009-04-03

    Abstract: A service node in a telecommunication network is arranged to receive a Multi-Media video call setup for a terminal to be called. The called terminal is called by the service node according to either a video or a voice call setup, depending on a current allowed answer mode of the called terminal. Responding to the call setup will, depending on either answering or rejecting the call setup by the called terminal, and depending whether the call setup is for a voice or a video call, be handled by the service node according to a predetermined method. When a call setup is answered by the called terminal, the service node further supports a method of toggling between a video call and a voice call at the called terminal.

    Abstract translation: 电信网络中的服务节点被布置为接收要被呼叫的终端的多媒体视频呼叫建立。 根据被叫终端的当前允许的应答模式,被叫终端根据视频或语音呼叫建立被服务节点调用。 响应于呼叫建立将取决于应答或拒绝被叫终端的呼叫建立,并且取决于呼叫建立是用于语音还是视频呼叫,由服务节点根据预定方法来处理。 当被叫终端应答呼叫建立时,业务节点进一步支持在被叫终端的视频呼叫和语音呼叫之间切换的方法。

Patent Agency Ranking