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Methods, systems, and computer program products for supporting transcoder-free operation in media gateway

一种免码变换器、媒体网关的技术，应用在用于在媒体网关中支持免码变换器的操作、系统和计算机程序产品领域，能够解决HDLC连接复杂连接建立步骤等问题

Active Publication Date: 2009-01-07
GENBAND US LLC
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Establishing each HDLC connection requires complex connection establishment steps

Method used

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  • Methods, systems, and computer program products for supporting transcoder-free operation in media gateway
  • Methods, systems, and computer program products for supporting transcoder-free operation in media gateway
  • Methods, systems, and computer program products for supporting transcoder-free operation in media gateway

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Embodiment Construction

[0024] According to one aspect, the subject matter described herein includes a method for enabling transcoder-free operation in a media gateway. image 3 is a flowchart illustrating exemplary steps for implementing transcoder-free operation in a media gateway according to an embodiment of the subject matter described herein. refer to image 3 , in step 300, a list of media encoding rates used by endpoints of the media stream connection and corresponding indexes may be received. The control module of the media gateway can receive these lists. The control module may forward the list to an internal processor associated with a control voice processing function of the media gateway. In step 302, the internal processor determines whether transcoder-free operation is available. Determining whether transcoder-free operation is available may include checking incoming and outgoing codec rates to determine whether the rates are compatible.

[0025] In step 304, if it is determined that...

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Abstract

Methods, systems, and computer program products for providing transcoder-free operation in a media gateway are disclosed. In one method, first and second lists of media encoding rates and corresponding indices used by first and second media endpoints of a media stream connection are received. It is determined whether transcoder-free operation is possible for the media stream connection based on the first and second lists. In response to determining that transcoder-free operation is possible for the media stream connection, a transcoder-free connection is established in the media gateway between the first and second endpoints using a single digital signal processor to monitor and map between indices and encoding rates used by the first and second endpoints during the media stream connection.

Description

[0001] Related references [0002] This application claims the benefit of US Patent Application Serial No. 11 / 207572, filed August 19, 2005, the entire disclosure of which is hereby incorporated by reference. technical field [0003] The subject matter described herein relates to implementing transcoder-free operation in telecommunications networks. More particularly, the subject matter described herein relates to methods, systems, and computer program products for enabling transcoder-free operation in a media gateway. Background technique [0004] In telecommunications networks, a codec is a device that encodes and decodes voice signals sent over the network. Typically, speech transmitted in a telecommunications network is encoded using uniform pulse code modulation (PCM). Unified PCM involves sampling the speech signal at a rate of 8000 samples per second and 8 bits per sample, resulting in a codec rate of 64kbps. Recently, in mobile communication networks, Adaptive Mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M7/00
CPCH04W88/181
Inventor W·陈E·C·昌
Owner GENBAND US LLC
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