Apparatus and method for speech transport with adaptive packet size
    52.
    发明公开
    Apparatus and method for speech transport with adaptive packet size 审中-公开
    Vorrichtung und Verfahren zur Sprachtransport mit adaptivingPaketlänge

    公开(公告)号:EP0942560A3

    公开(公告)日:2003-10-22

    申请号:EP99102457.1

    申请日:1999-02-08

    IPC分类号: H04L12/64 H04L12/56

    摘要: A system and method for adaptive packet-length IP telephony includes a first IP telephony communication device located on a data network and enabled to establish an IP telephony connection to a second IP telephony communication device. Optionally, the first communication device is enabled to access network topology information from a server regarding a network segment connecting the first and second communication devices. If the network topology reflects the presence of a low efficiency router on the network segment, the first communication device enters a fixed packet-length operational mode. If the network topology indicates an absence of a low efficiency network router on the segment, the first communication device enters an adaptive packet-length operational mode. In the adaptive packet-length operational mode, prior to establishing the IP telephony connection, the first communication device determines an end-to-end transmission delay by transmitting a test packet to the second communication device with instructions to return a first acknowledgment message. Based on the first end-to-end transmission delay, a control program associated with the first communication device calculates a permissible packet length for IP telephony packets transmitted from the first communication device to the second communication device via the IP telephony connection. After establishment of the IP telephony connection, the first communication device transmits a second test packet which generates a second end-to-end transmission delay data set. Based on the second data set, the control program calculates a second permissible packet length.

    摘要翻译: 用于自适应分组长度IP电话的系统和方法包括位于数据网络上并且能够建立到第二IP电话通信设备的IP电话连接的第一IP电话通信设备。 可选地,第一通信设备能够从服务器接入关于连接第一和第二通信设备的网段的网络拓扑信息。 如果网络拓扑反映在网段上存在低效路由器,则第一通信设备进入固定的分组长度操作模式。 如果网络拓扑结构指示该段上不存在低效率网络路由器,则第一通信设备进入自适应分组长度操作模式。 在自适应分组长度操作模式中,在建立IP电话连接之前,第一通信设备通过向第二通信设备发送具有返回第一确认消息的指令的测试分组来确定端到端传输延迟。 基于第一端到端传输延迟,与第一通信设备相关联的控制程序经由IP电话连接计算从第一通信设备发送到第二通信设备的IP电话分组的允许分组长度。 在建立IP电话连接之后,第一通信设备发送生成第二端到端传输延迟数据集的第二测试分组。 基于第二数据组,控制程序计算第二允许分组长度。

    Subconference calling in a telephony-over-lan environment
    53.
    发明公开
    Subconference calling in a telephony-over-lan environment 审中-公开
    在电话,在局域网环境下属电话会议

    公开(公告)号:EP1006706A3

    公开(公告)日:2003-07-02

    申请号:EP99122254.8

    申请日:1999-11-08

    IPC分类号: H04M3/56 H04M7/00 H04L12/66

    摘要: A method and system for establishing and managing subconference calls within a main conference call includes a subconference call subsystem (30) which responds to a subconference call request (28) from a first terminal (14) during the main conference call by transmitting (58) the subconference call request to a second terminal (24). The subconference call subsystem monitors (30) a connection to the second terminal to detect a signal indicating acceptance of the request. Upon detecting an acceptance, the subconference call subsystem establishes (62) a first subconference call and a data mixer (34) mixes (66) first voice data (42) from the main conference call with simultaneously transmitted second voice data (38) generated from the first and second terminals. A data router (36) transmits (68) the mixed first and second voice data (40) to the first and second terminals without transmitting the second voice data to any of the other terminals participating in the main conference call. Furthermore, the process of establishing subconference calls is transparent to the other main conference terminals. The subconference call terminal can establish (73) a second subconference call and can switch (80 and 82) the terminal for bi-directional voice transmissions within the main conference call, the first subconference call, or the second subconference call.

    Collaborative conference bridges
    55.
    发明公开
    Collaborative conference bridges 失效
    协作会议桥

    公开(公告)号:EP0805582A3

    公开(公告)日:2003-01-15

    申请号:EP97106787.1

    申请日:1997-04-24

    IPC分类号: H04M3/56

    CPC分类号: H04M3/562 H04M3/56

    摘要: A method and apparatus for executing a conference call session between parties provides collaboration between nodes having separate conference-bridging capabilities, so that selection from a number of alternative connectivity schemes can be based upon bridge-to-bridge negotiation. The selection of a connectivity scheme may be based upon one or more of cost and telecommunication resource availability. Selection may also be based upon stored historical data relating to prior conference calls involving at least one of said parties and/or upon historical data of patterns of node resource availability. A conference bridge (10) includes a user interface (16), a message interface (18), a connectivity computation component (14), a conference bridge manager (12), and a multimedia exchange component (23). An input to the connectivity computation component (14) includes a database (22) having tariff table information and resource-demand cycle information. Another input to this component is a load monitor (26) for continuously determining the availability of telecommunication resources. In the preferred embodiment, the method and apparatus allow dynamic reconfiguration of conference call connectivity when a time-dependent condition or a load-dependent condition is detected.

    Method and system for out-tasking conversions of message attachments
    56.
    发明公开
    Method and system for out-tasking conversions of message attachments 有权
    Verfahren und System zum Auslagern der Konversionen vonNachrichtenanhängen

    公开(公告)号:EP0950969A3

    公开(公告)日:2002-12-04

    申请号:EP99104370.4

    申请日:1999-03-04

    IPC分类号: G06F17/60 H04L12/58

    摘要: A method and system for exchanging electronic messages, such as email messages, include isolating personal computers and other client devices from the process of converting a message attachment from one file format to a second file format. File-format conversions are out-tasked to enhance file accessibility, free computer resources, and conserve a user's time. The access requirements of each attachment to electronic messages are compared to the capabilities of a target client device. If it is determined that a file-format conversion is required, the conversion operation is assigned to a server that supports the process of reformatting the attachments. In an email environment, the server is substantially equivalent to the conventional email server, but includes enhanced conversion capabilities. In one embodiment, the determination of whether an attachment is accessible without conversion occurs at the server level. In another embodiment, the determination is implemented at the client device level. Preferably, if a local email server is incapable of reformatting the attachment, a request is transmitted to a remote server to perform the conversion. Typically, the remote server is the email server that supports message exchanges for the person who originated the message.

    摘要翻译: 用于交换电子消息(诸如电子邮件消息)的方法和系统包括将个人计算机和其他客户端设备与将消息附件从一种文件格式转换成第二文件格式的过程相隔离。 文件格式转换是无处不在的,以增强文件的可访问性,免费的计算机资源,并节省用户的时间。 将电子消息的每个附件的访问要求与目标客户端设备的能力进行比较。 如果确定需要文件格式转换,则转换操作被分配给支持重新格式化附件的过程的服务器。 在电子邮件环境中,服务器基本上等同于传统的电子邮件服务器,但包括增强的转换功能。 在一个实施例中,在服务器级别是否发生附件是否可访问的确定。 在另一个实施例中,该确定在客户端设备级实现。 优选地,如果本地电子邮件服务器不能重新格式化附件,则向远程服务器发送请求以执行转换。 通常,远程服务器是支持发起消息的人的消息交换的电子邮件服务器。

    Computer telephony audio configuration
    58.
    发明公开
    Computer telephony audio configuration 审中-公开
    AudiochonfigurationfürRechner-Telefonie

    公开(公告)号:EP1152585A2

    公开(公告)日:2001-11-07

    申请号:EP01301332.1

    申请日:2001-02-15

    IPC分类号: H04M1/247 H04M1/60

    CPC分类号: G06F3/16 H04M1/247 H04M1/6033

    摘要: Techniques for validating an audio configuration of a computer are provided. Validation tests are performed on the audio configuration and results from the tests are displayed to a user as a report. The report can include an indication of the audio configuration settings that will adversely affect the audio quality for such uses as computer telephony. Additionally, the report can indicate a recommendation on changing the audio configuration to improve audio quality and can assist the user in making the audio configuration change.

    摘要翻译: 提供了用于验证计算机的音频配置的技术。 对音频配置执行验证测试,测试结果作为报告显示给用户。 该报告可以包括音频配置设置的指示,这将对用于诸如计算机电话的这种用途的音频质量产生不利影响。 此外,该报告可以指示关于改变音频配置以改善音频质量的建议,并且可以帮助用户改变音频配置。

    Method and system for adaptively allocating call-related tasks
    59.
    发明公开
    Method and system for adaptively allocating call-related tasks 有权
    Verfahren und System zur adaptiven Zuweisung von Anrufaufgaben

    公开(公告)号:EP1107554A2

    公开(公告)日:2001-06-13

    申请号:EP00310389.2

    申请日:2000-11-23

    IPC分类号: H04M3/42 H04M7/00 H04M3/54

    摘要: A method and a system for allocating resources for implementing certain call-related features, such as call forwarding, includes enabling a centrally accessed unit (30) (e.g., a gatekeeper) to support the features and enabling telephony devices (12, 14, 16, 18, 20, 22, 24 and 26) (e.g., personal computers running ToL client software) to independently implement the features. Thus, there is redundant capability with respect to the features. A task-allocation scheme is established for adaptively assigning execution of the tasks needed to perform the features. The scheme is at least partially based upon determining processing resource availability within either or both of the centrally accessed unit and the telephony devices. When a request for a feature is detected, the execution of the requested feature is assigned to either the centrally accessed unit or the particular telephony device with which the request is associated, depending upon the current processing resource availabilities. The method is preferably utilized in a ToL network (10), which may include a load-sharing server (46) that is dedicated to the adaptive allocation of the call-related tasks.

    摘要翻译: 用于分配用于实现某些呼叫相关特征(例如呼叫转移)的资源的方法和系统包括使得集中访问的单元(例如,网守)能够支持特征并使得电话设备(12,14,16) ,18,20,22,24和26)(例如,运行ToL客户端软件的个人计算机)来独立实现特征。 因此,有关功能的冗余能力。 建立了一种任务分配方案,用于自适应地分配执行执行特征所需任务的执行。 该方案至少部分地基于在集中访问的单元和电话设备之一或两者中确定处理资源可用性。 当检测到对特征的请求时,根据当前的处理资源可用性,请求的特征的执行被分配给与中心访问的单元或与该请求相关联的特定电话设备。 该方法优选地在ToL网络(10)中使用,其可以包括专用于呼叫相关任务的自适应分配的负载共享服务器(46)。

    Apparatus and method for tol client boundary protection
    60.
    发明公开
    Apparatus and method for tol client boundary protection 有权
    Gerätund VerfahrenfürToL-Klientübergangsschutz

    公开(公告)号:EP1061726A2

    公开(公告)日:2000-12-20

    申请号:EP00304603.4

    申请日:2000-05-31

    IPC分类号: H04M7/00 H04L29/06 G06F1/00

    摘要: A telephony-over-LAN (ToL) system having a graphical user interface (GUI) wherein an authorized or guest user may be locked within a ToL window 3008, having full access to the ToL features, but denied access to other parts of the computer system. In such a system, the terminal user or subscriber may click on a "Guest" button 3013 on the ToL client GUI screen before leaving the computer. The ToL guest user may then execute the call normally. According to a first embodiment of the invention, the ToL client locks the user into the ToL client screen. Keystrokes and mouse cursor movements which would allow exiting the ToL client are prevented. According to a second embodiment, of the invention, the ToL client screen is "maximized" and the minimize or resize window functions are blocked. When the terminal subscriber returns, a password is entered to regain full access to the computer.

    摘要翻译: 具有图形用户界面(GUI)的LAN电话(ToL)系统,其中授权或访客用户可被锁定在ToL窗口3008内,具有对ToL特征的完全访问,但拒绝访问计算机的其他部分 系统。 在这种系统中,终端用户或订户可以在离开计算机之前点击ToL客户端GUI屏幕上的“访客”按钮3013。 ToL访客用户然后可以正常地执行呼叫。 根据本发明的第一实施例,ToL客户端将用户锁定到ToL客户端屏幕。 可以防止能够退出ToL客户端的按键和鼠标光标移动。 根据本发明的第二实施例,ToL客户端屏幕被“最大化”,并且窗口功能的最小化或调整大小被阻止。 当终端用户返回时,输入密码以重新获得对计算机的完全访问。