Zebra MC55A0 Guide de l'utilisateur télécharger pdf (Page 167)

APPENDIX C VOICE QUALITY MANAGER

Introduction

The Voice Quality Manager (VQM) is a software package that resides on the MC55. VQM enables a set of

features for Voice over WiFi (VoWiFi) calls. The VQM user interface is designed to be intuitive and easy to use,

so complex tasks such as enabling the Acoustic Echo Canceller (AEC) while a call is in progress are done with

very little or no user intervention.

Features

The VQM software:

•

Improves the voice transmission quality without using additional battery power.

•

Turns on the AEC for VoWiFi calls automatically, without user intervention.

•

Prioritizes the outgoing audio IP packets.

•

Provides user-selectable audio modes (speakerphone and handset) with a single tap of the VQM icon. A

VQM icon in the title bar of the device indicates the audio mode currently in use.

•

NDIS 5.1 compliant.

Enabling VQM

To enable VQM:

1. Tap > File Explorer.

2. Navigate to the Windows folder.

3. Locate the file VQMAudioNotify.

4. Tap the filename to enable VQM.

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Zebra MC55A0 Guide de l'utilisateur Page 167