Fix Missing Initial 3 Seconds of Voice with Webex Client.

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Updated:September 28, 2023
Document ID:220972

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    Introduction

    This document describes how to resolve the 3 second delay observed with calls in WebEx App.

    Prerequisites

    Push Webex Client log to Webex Control Hub and upload the Cisco Calling Environment Data file to the case, for TAC to review. TAC needs the user email address and organizational ID.

    Problem

    During Webex app calling, first 3 seconds of initial audio gets dropped.

    Solution

    The log signature can be found in the Webex client logs.  It is showing the call was buffered.

    "EccMediaConnectionManager::onFirstBufferReceived:Cost 0.31s to Recv first playback buffer after call connected"

    The settings can be disable in the Webex Control Hub portal by Product Server Manager (DSM).

    1. desktop-cucm-audio-drop-seconds-disabled
    2. mobile-cucm-audio-drop-seconds-disabled

    Revision History

    Revision Publish Date Comments
    1.0
    28-Sep-2023
    Initial Release
    TAC Authored

    Contributed by Cisco Engineers

    • Le Pham
      Cisco TAC

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