Configuring Wideband Codec - Cisco 7961G-GE - IP Phone VoIP Administration Manual

Configuring Wideband Codec

Step 4
Step 5
Step 6
Configuring Wideband Codec
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.0
6-8
Cisco recommends that you also store backup copies of custom image
Note
files in another location. You can use these backup copies if the
customized files are overwritten when you upgrade
Cisco Unified Communications Manager.
Use a text editor to edit the List.xml file. See the
Requirements" section on page 6-5
requirements, and a sample file.
Save your modifications and close the List.xml file.
When you upgrade Cisco Unified Communications Manager, a default
Note
List.xml file will replace your customized List.xml file. After your
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.
To cache the new List.xml file, stop and start the TFTP service by using
Cisco Unified Communications Manager Serviceability or disable and re-enable
the Enable Caching of Constant and Bin Files at Startup TFTP service parameter
(located in the Advanced Service Parameters).
If Cisco Unified Communications Manager has been configured to use G.722
(G.722 is enabled by default for the Cisco Unified IP Phone 7970 Series) 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.
Chapter 6 Customizing the Cisco Unified IP Phone
"List.xml File Format
for the location of this file, formatting
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