Cisco 8831NR Administration Manual page 45

Cisco Unified IP Phones and Telephony Networks
CiscoUnifiedIPConferencePhoneandCiscoUnifiedCommunicationsManagerExpressInteraction
If supported, when the phone works with the Cisco Unified Communications Manager Express (Unified
CME), the phone must go into CME mode.
When a user invokes the conference feature, the tag allows the conference phone to use either a local or
network hardware conference bridge.
In CME mode, the conference phones either only partially support, or do not support the following actions:
Table 12: Supported Phone Features for CME Mode
Action
Barge
Conference
Direct Transfer
Hold
Join
Select
Transfer
Conference Phone Power
The Cisco Unified IP Conference Phone can be powered with external power or with Power over Ethernet
(PoE). External power is provided through a separate power supply. PoE is provided by a switch through the
Ethernet cable attached to a conference phone.
Note When you install a phone that is powered with external power, connect the power supply to the phone and to
a power outlet before you connect the Ethernet cable to the phone. When you remove a phone that is powered
with external power, disconnect the Ethernet cable from the phone before you disconnect the power supply.
Power Guidelines
The following table provides guidelines for powering the Cisco Unified IP Conference Phone.
Table 13: Guidelines for Powering the Cisco Unified IP Conference Phone
Power Type
External power: Provided by an external power
supply.
Cisco Unified IP Conference Phone and Cisco Unified Communications Manager Express Interaction
Support Level
Not supported.
Only supported in the connected call transfer scenario.
Not supported.
Supported using the Hold softkey.
Supported using the Conference softkey.
Not supported.
Only supported in the connected call transfer scenario.
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
Guidelines
The Cisco Unified IP Conference Phone uses the
CP-PWR-CUBE-3 external power supply.
When using a sound base in Linked Mode, the primary
sound base must be connected using the
CP-PWR-CUBE-3 external power supply.
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