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Introduction

The M500 supports wideband wireless audio for enhanced call quality on cordless handsets or desksets. This page describes how to set up wideband audio.


Wideband vs. narrowband audio


WidebandNarrowband
Maximum number of cordless devices localized to a base48
Maximum number of calls per base48


Both narrowband and wideband codecs are supported with SIP calls regardless of whether M500 wideband is enabled or disabled. Wideband SIP audio will be transcoded to narrowband if M500 wideband is disabled.

DECT intercom calls will always be narrowband regardless of whether M500 wideband is enabled or disabled.


Configuring wideband audio

Wideband audio is disabled by default. It can be enabled as described below.

WebUI

Note

When wideband audio is enabled, the system calling capacity is lowered to four devices per base unit. A reboot is also required, and all calls in progress will be terminated.

On the System → Base Preferences page:

  • To enable wideband audio, select the Wideband enabled check box.
  • To disable wideband audio (i.e. use narrowband audio), clear the Wideband enabled check box


Provisioning

Note

When wideband is enabled, the system calling capacity is lowered to four devices per base unit. A reboot is also required, and all calls in progress will be terminated.

Import the following setting value to M500 via provisioning.

  • To enable wideband audio, substitute <value> with 1.
  • To disable wideband audio (i.e. use narrowband audio), substitute <value> with 0.
cordless.wideband_enabled = <value>

For more information about this setting, see cordless.wideband_enabled.


Further Information


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