Configuring Wideband Codec - Cisco 7945G Administration Manual

Configuring Wideband Codec

Note
To upload the files, choose Software Upgrades > Upload TFTP Server File in Cisco Unified
Communications Operating System Administration. For more information, see the "Software Upgrades"
chapter in Cisco Unified Communications Operating System Administration Guide.
Note
You must also copy the customized images and files to the other TFTP servers that the phone may
Step 3
contact to obtain these files.
Note
Use a text editor to edit the List.xml file. See the
Step 4
page 6-4
Save your modifications and close the List.xml file.
Step 5
Note
Step 6 To cache the new List.xml file, stop and start the TFTP service by using Cisco Unified Serviceability or
disable and reenable the Enable Caching of Constant and Bin Files at Startup TFTP service parameter
(located in the Advanced Service Parameters).
Configuring Wideband Codec
If Cisco Unified Communications Manager has been configured to use G.722 (G.722 is enabled by
default for the Cisco Unified IP Phone 7965G and 7945G) and if the far endpoint supports G.722, the
call connects using the G.722 codec in place of G.711. This situation occurs regardless of whether the
user has enabled a wideband headset or wideband handset, but if either the headset or handset is enabled,
the user may notice greater audio sensitivity during the call. Greater sensitivity means improved audio
clarity but also means that more background noise can be heard by the far endpoint—noise such as
rustling papers or nearby conversations. Even without a wideband headset or handset, some users may
prefer the additional sensitivity of G.722. Other users may be distracted by the additional sensitivity of
G.722.
The following parameters in Cisco Unified Communications Manager Administration affect whether
wideband is supported for this Cisco Unified Communications Manager server or a specific phone:
Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.1(3)
6-6
The file name and subdirectory parameters are case sensitive. Be sure to use the forward slash
"/" when you specify the subdirectory path.
If the folder does not exist, the folder gets created and the files get uploaded to the folder.
Cisco recommends that you also store backup copies of custom image files in another location.
You can use these backup copies if the customized files are overwritten when you upgrade
Cisco Unified Communications Manager.
for the location of this file, formatting requirements, and a sample file.
When you upgrade Cisco Unified Communications Manager, a default List.xml file will replace
your customized List.xml file. After you customize the List.xml file, make a copy of the file and
store it in another location. After upgrading Cisco Unified Communications Manager, replace
the default List.xml file with your stored copy.
Chapter 6 Customizing the Cisco Unified IP Phone
"List.xml File Format Requirements" section on
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