公开(公告)号：US20090327499A1

公开(公告)日：2009-12-31

申请号：US12305763

申请日：2008-01-08

Applicant: David Peter Strickland ,  Ronald Brett Buckingham ,  Anna Cheung

Inventor： David Peter Strickland ,  Ronald Brett Buckingham ,  Anna Cheung

IPC: G06F15/16 ,  H04L12/66

CPC classification number: H04M7/0072 ,  H04L67/28 ,  H04L69/24 ,  H04Q3/64 ,  H04Q2213/13034 ,  H04Q2213/13103 ,  H04Q2213/13196 ,  H04Q2213/13389

Abstract: The solutions offered herein include introducing a mediator in the codec: negotiation process. Rather than having the endpoints negotiate codecs directly, the mediator receives signaling from the endpoints relating to the establishment of a communication session which requires codec negotiation, and influences the selection of a codec based on codec policy criteria which depends on known topology information.

Abstract translation: 这里提供的解决方案包括在编解码器中引入调解器：协商过程。 调停员不是直接与端点协商编解码器，而是从需要编解码器协商的通信会话建立的端点接收信令，并且基于取决于已知拓扑信息的编解码器策略标准影响编解码器的选择。

公开(公告)号：US06898278B1

公开(公告)日：2005-05-24

申请号：US09567136

申请日：2000-05-08

Applicant: Li Li ,  Edward Ndububa ,  Samuel Chen ,  Jianping Jiang ,  Jianli Wang ,  Chunsheng Xie ,  Tu Do ,  Frank Xu ,  Yi Oin ,  Zoran Milojevic ,  Anna Cheung ,  Andre Moskal

Inventor： Li Li ,  Edward Ndububa ,  Samuel Chen ,  Jianping Jiang ,  Jianli Wang ,  Chunsheng Xie ,  Tu Do ,  Frank Xu ,  Yi Oin ,  Zoran Milojevic ,  Anna Cheung ,  Andre Moskal

IPC: H04L29/06 ,  H04M7/00 ,  H04Q3/00 ,  H04M5/00

CPC classification number: H04L65/1069 ,  H04L29/06027 ,  H04L65/4007 ,  H04M7/006 ,  H04Q3/0025 ,  H04Q3/0045

Abstract: A signalling switch for use in information protocol telephony is provided, which can initiate, sustain, and terminate a plurality of discrete voice and data calls simultaneously. A plurality of cards are mounted on a computer bus, where the first card is a single board computer whose function is to act as the operations and maintenance control card for the switch. A non-system card functions as a message transport controller card; and there is at least one further non-system card which functions as a master application controller card. Local bus communication among the non-system cards is provided by a local bus found on the message transport controller card. Telephone routing information protocol software is resident in the switch, and the switch communicates externally via Ethernet interfaces. Thus, the signalling switch may be positioned in an information protocol telephony network environment to initiate, sustain, and terminate connections between a client and the network or the network and a client, under the control of the resident telephone routing information protocol software.

Abstract translation: 提供了用于信息协议电话的信令交换机，其可以同时发起，维持和终止多个离散语音和数据呼叫。 多个卡安装在计算机总线上，其中第一卡是单板计算机，其功能是充当开关的操作和维护控制卡。 非系统卡作为消息传输控制卡; 并且存在至少一个用作主应用控制器卡的非系统卡。 非系统卡之间的本地总线通信由在消息传输控制器卡上发现的本地总线提供。 电话路由信息协议软件驻留在交换机中，交换机通过以太网接口从外部通信。 因此，信令交换机可以位于信息协议电话网络环境中，以在驻留的电话路由信息协议软件的控制下发起，维持和终止客户端与网络或网络以及客户端之间的连接。