Cisco Ip Phone 8800 Series Administration Guide For Cisco Unified Communications Manager - Cisco 8800 Series Administration Manual

Set Up Wideband Codec
Related Topics
Cisco Unified Communications Manager Documentation, on page xvii
Set Up Wideband Codec
By default, the G.722 codec is enabled for the Cisco IP Phone. If Cisco Unified Communications Manager
is configured to use G.722 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 the far endpoint can hear more background
noise: 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 distracting. Other users may prefer the additional
sensitivity of G.722.
The Advertise G.722 and iSAC Codec service parameter affects whether wideband support exists for all
devices that register with this Cisco Unified Communications Manager server or for a specific phone, depending
on the Cisco Unified Communications Manager Administration window where the parameter is configured.
Procedure
Step 1 To configure wideband support for all devices:
a) From Cisco Unified Communications Manager Administration, choose System > Enterprise Parameters
b) Set the Advertise G.722 and iSAC Codec field
The default value of this enterprise parameter is True, which means that all Cisco IP Phone Models that
register to this Cisco Unified Communications Manager advertise G.722 to Cisco Unified Communications
Manager. If each endpoint in the attempted call supports G.722 in the capabilities set, Cisco Unified
Communications Manager chooses that codec for the call whenever possible.
Step 2
To configure wideband support for a specific device:
a) From Cisco Unified Communications Manager Administration, choose Device > Phone.
b) Set the Advertise G.722 and iSAC Codec parameter in the Product Specific Configuration area.
The default value of this product-specific parameter is to use the value that the enterprise parameter
specifies. If you want to override this on a per-phone basis, choose Enabled or Disabled
Set Up Idle Display
You can specify an idle display (text only; text file size should not exceed 1M bytes) that appears on the phone
screen. The idle display is an XML service that the phone invokes when the phone is idle (not in use) for a
designated period and no feature menu is open.
For detailed instructions about creating and displaying the idle display, see Creating Idle URL Graphics on
Cisco IP Phone at this URL:
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00801c0764.shtml

Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager

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