Cisco 7941G - Unified IP Phone VoIP Administration Manual page 189

Chapter 6 Customizing the Cisco Unified IP Phone
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.
Two parameters in Cisco Unified Communications Manager Administration
affect whether wideband is supported for this Cisco Unified Communications
Manager server and/or a specific phone:
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Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
OL-14620-01
Advertise G.722 Codec—From Cisco Unified Communications Manager
Administration, choose System > Enterprise Parameters. The default value
of this enterprise parameter is True, which means that all Cisco Unified IP
Phone Models 7941G, 7941G-GE, 7961G, 7961G-GE, 7970G, and
7971G-GE that are registered to this Cisco Unified Communications
Manager will advertise G.722 to Cisco Unified Communications Manager. If
each endpoint in the attempted call supports G.722 in its capabilities set, Cisco
Unified Communications Manager will choose that codec for the call.
Advertise G.722 Codec—From Cisco Unified Communications Manager
Administration, choose Device > Phone. The default value of this
product-specific parameter is to use the value specified in the enterprise
parameter. If you want to override this on a per-phone basis, choose Enabled
or Disabled in the Advertise G.722 Codec parameter on the Product Specific
Configuration area of the Phone Configuration window.
Configuring Wideband Codec
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