AT&T Office@Hand

Learn how to use features from AT&T Office@Hand. Access our self-help options to set up and use this application to communicate with customers.

Back to product page

Office@Hand: HD Voice Overview
Article #8025

HD Voice Overview

High ­Definition Voice or HD Voice allows you to establish calls between supported AT&T Office at Hand Desk Phones, desktop app and mobile app with high quality voice audio.

This automatically­enabled feature is available to AT&T Office@Hand Office, Premium, and Enterprise.

Key Features & Benefits:

Clear conversation with background noise reduction.
Better call experience within AT&T Office at Hand services across all end points
(Desk phones, conference phones, Office@Hand for desktop and Office@Hand mobile app)
HD Voice with OPUS Codec is enabled by default on Office@Hand mobile app, and Office@Handdesktop app. It renders richer commmunication with its clarity, and provides a better user experience, especially in a limited bandwidth and network environment.

Compatible Phones with HD Voice


Desk Phones


SoundPoint IP 335
SoundPoint IP  450
SoundPoint IP  550
SoundPoint IP  560
SoundPoint IP  650
SoundPoint IP  670
VVX 101
VVX 201
VVX 310
VVX 311
VVX 410
VVX 411
VVX 500
VVX 501
VVX 600
VVX 601 VVX 1500


SPA 303
SPA 508G
SPA 509G
SPA 514G
SPA 525G
SPA 525G2



Conference Phones


IP 7000
IP 5000
IP 6000

OfficeHand for desktop



Office@Hand mobile app (HD Voice)

HD Voice is automatically enabled by default on the Office@hand Mobile App version 7.4 and above; which means that if you are using the latest version of the app, you will no longer see the option to switch HD Voice on or off on the mobile app settings.

If you are still the Office@hand Mobile App version 7.3 or lower, we recommend that you upgrade to the latest version of the app.

Note: If your device does not meet the minimum requirement, you will still have HD voice with G.722 codec

 iOS: iOS 9 and higher (iOS 11, iPhone
X supported)

Dual­core: 1.5
GHz and higher Quad­core: any GHz
Android 4.4 or
O supported)

Note: The table above shows HD capable phones supported via Assisted Provisioning only.

See Also:
Enabling HD Voice on the Office@Hand Mobile App
HD Voice for the Office@Hand Desktop App
Enabling HD Voice on the Online Account

Keywords: hd voice, hd, overview, 8025, OPUS codec, mobile app, desktop app, Office, Premium, Enterprise, desk phones