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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
What Are Differences Among G.729, G.729A, G.729B, and G.729AB?

What Are Differences Among G.729, G.729A, G.729B, and G.729AB?

  • G.729B/G.729AB

    If the AnnexB parameter is carried or the AnnexB value is yes, voice activity detection (VAD) of G.729 is enabled.

  • G.729/G.729A

    If the AnnexB value is no, VAD of G.729 is disabled.

By default, the INVITE request initiated by the AR does not carry the AnnexB parameter, and silence suppression is not enabled for DSP; that is, the AR uses G729/G729A at the initial phase. After the peer device returns a codec type supported by the AR, this codec type is used regardless of whether the AnnexB parameter is used.

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Updated: 2019-05-10

Document ID: EDOC1000079719

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