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    • 7. 发明授权
    • Authentication of mobile devices over voice channels
    • 通过语音信道认证移动设备
    • US08385888B2
    • 2013-02-26
    • US12637046
    • 2009-12-14
    • Christopher LabradorAlexander ReifMichael Eric GrayDouglas GisbyColin Mark Werner
    • Christopher LabradorAlexander ReifMichael Eric GrayDouglas GisbyColin Mark Werner
    • H04M1/68
    • H04M3/4234H04M3/382H04M2207/18
    • Mobile devices are authorized to access PBX-based voice services through presentation of audible tones on a voice channel, which are determined based on a code received over a separate data channel. The device can request a code over a data channel from a server in communication with the PBX. The server provides data representative of the code over the data channel to the device, and arranges for local storage of the code. The device makes a connection with the PBX over a separate voice channel. The mobile device presents the received code as a sequence of audio tones (e.g., DTMF tones). The audio tones are used to generate data that can be compared with stored codes by an authentication module. The authorization module can indicate to the PBX that the code is valid; services can be provided by the PBX in response. The valid codes can be maintained, such as by removing used codes from code storage.
    • 移动设备被授权通过在语音信道上呈现可听音来访问基于PBX的语音服务,该语音信道基于通过单独数据信道接收的代码来确定。 设备可以从与PBX通信的服务器通过数据通道请求代码。 服务器通过数据通道将代表代码的数据提供给设备,并安排代码的本地存储。 该设备通过单独的语音通道与集团电话建立连接。 移动设备将所接收的代码呈现为音频音调序列(例如,DTMF音调)。 音频音调用于生成可以通过认证模块与存储的代码进行比较的数据。 授权模块可以向集团电话指示代码有效; 服务可由集团电话提供。 可以维护有效的代码,例如通过从代码存储中删除使用的代码。
    • 8. 发明授权
    • System and method for reconnecting a device to a group call
    • 将设备重新连接到群组呼叫的系统和方法
    • US08238537B2
    • 2012-08-07
    • US12394377
    • 2009-02-27
    • Doug GisbyChristopher LabradorBrian OliverSusie Simon-DanielsAdrian LoganEric FritzleyBrian McColgan
    • Doug GisbyChristopher LabradorBrian OliverSusie Simon-DanielsAdrian LoganEric FritzleyBrian McColgan
    • H04M3/42
    • H04M3/56H04M3/38H04M2203/2088H04M2203/6081
    • A system and method for reestablishing a voice communications session moderated by a group call server between two or more telephony devices. The method is performed by a processor monitoring the communications session. The method comprises: storing one or more data records representing group call information; detecting disconnection of at least one participating telephony device from the group communications session, and determining that the disconnection was not intentionally initiated; accessing the stored call group information data and causing signals to enable reestablishment of participation by the disconnected device to be sent to the disconnected device; and upon receipt by the group call server from the disconnected device of signals representing a request to reconnect the disconnected device, outputting command signals for reestablishing a communications session between the disconnected device and at least one other device participating in the group communications session.
    • 一种用于重建由两个或多个电话设备之间的组呼叫服务器主持的语音通信会话的系统和方法。 该方法由监视通信会话的处理器执行。 该方法包括:存储表示组呼信息的一个或多个数据记录; 检测至少一个参与电话设备与所述组通信会话的断开,并且确定所述断开没有被有意地启动; 访问所存储的呼叫组信息数据并使信号能够重新建立被断开的设备的参与以被发送到断开的设备; 并且在来自断开的设备的组呼呼叫服务器接收到表示重新连接断开的设备的请求的信号时,输出用于重新建立在断开的设备与参与组通信会话的至少一个其他设备之间的通信会话的命令信号。