Option

Description

To Change

Load Server

Used to optimize installation time for phone firmware upgrades and offload the WAN by storing images locally, negating the need to traverse the WAN link for each phone's upgrade.

You can set the Load Server to another TFTP server IP address or name other than the TFTP Server 1 or TFTP Server 2 from which the phone firmware can be retrieved for phone upgrades. When the Load Server option is set, the phone contacts the designated server for the firmware upgrade.

Note

The Load Server option allows you to specify an alternate TFTP server for phone upgrades only. The phone continues to use TFTP Server 1 or TFTP Server 2 to obtain configuration files. The Load Server option does not provide management of the process and of the files, such as file transfer, compression, or deletion.

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

RTP Control Protocol

Indicates whether the phone supports the Real-Time Control Protocol (RTCP).

Settings include:

• Enabled
  
• Disabled-default

If this feature is disabled, several call statistic values display as 0. For additional information, see the following sections:

• Call Statistics Screen
  
• Streaming Statistics
  

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

CDP: PC Port

Indicates whether CDP is supported on the PC port (default is enabled).

Enable CDP on the PC port when Cisco VT Advantage/Unified Video Advantage (CVTA) is connected to the PC port. CVTA does not work without CDP interaction with the phone.

Note 

When CDP is disabled in Cisco Unified Communications Manager, a warning is presented when CDP is disabled on the PC port prevents CVTA from working.

Note 

The current PC and switch port CDP values are shown on the Settings menu.

From Cisco Unified Communications Manager Administration, choose Device > Phone.

CDP: SW Port

Indicates whether CDP is supported on the switch port (default is enabled).

• Enable CDP on the switch port for VLAN assignment for the phone, power negotiation, QoS management, and 802.1x security.
  
  
• Enable CDP on the switch port when the phone is connected to a Cisco switch.

Note    

When CDP is disabled in Cisco

Unified Communications Manager,a warning is presented when CDP is disabled on the switch port only if the phone is connected to a non-Cisco switch.

Note  

The current PC and switch port CDP values are shown on the Settings menu.

From Cisco Unified Communications Manager Administration, choose Device > Phone.

Peer Firmware Sharing

The Peer Firmware Sharing feature provides these advantages in high speed campus LAN settings:

• Limits congestion on TFTP transfers to centralized remote TFTP servers
  
  
• Eliminates the need to manually control firmware upgrades
  
  
• Reduces phone downtime during upgrades when large numbers of devices are reset simultaneously

Peer Firmware Sharing may also aid in

firmware upgrades in branch/remote office deployment scenarios over bandwidth-limited WAN links.

When enabled, it allows the phone to discover similar phones on the subnet that are requesting the files that make up the firmware image, and to automatically assemble transfer hierarchies on a per-file basis. The individual files making up the firmware image are retrieved from the TFTP server by only the root phone in the hierarchy, and are then rapidly transferred down the transfer hierarchy to the other phones on the subnet using TCP connections.

This menu option indicates whether the phone supports peer firmware sharing.

Settings include:

• Enabled—default
  
• Disabled
  

From Cisco Unified Communications Manager

Administration, choose Device >

Phone > Phone Configuration.

Log Server

Indicates the IP address and port of the remote logging machine to which the phone sends log messages. These log messages help in debugging the Peer Firmware Sharing feature.

Note

The remote logging setting does not affect the sharing log messages sent to the phone log.

From Cisco Unified Communications Manager

Administration, choose Device >

Phone > Phone Configuration.

LLDP: PC Port

Enables and disables Link Layer Discovery Protocol (LLDP) on the PC port. Use this setting to force the phone to use a specific discovery protocol. Settings include:

• Enabled—default
  
• Disabled
  

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

LLDP-MED: SW Port

Enables and disables Link Layer Discovery Protocol Media Endpoint Discovery (LLDP-MED) on the switch port. Use this setting to force the phone to use a specific discovery protocol, which should match the protocol supported by the switch. Settings include:

• Enabled—default
  
• Disabled
  

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

LLDP Asset ID

Identifies the asset ID assigned to the phone for inventory management.

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

Wireless Headset

Hookswitch Control

Enables users to receive notifications of incoming calls and answer or end calls while working in a wireless environment.

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

LLDP Power Priority

Advertises the phone’s power priority to the switch, enabling the switch to appropriately provide power to the phones. Settings include:

• Unknown—default
  
• Low
  
• High
  
• Critical
  

From Cisco Unified Communications Manager Administration, choose Device > Phone > Phone Configuration.

IP Addressing Mode

Displays the IP addressing mode that is available on the phone-IPv4 only, IPv6 only, or IPv4 and IPv6.

From Cisco Unified Communications Manager Administration, choose Device > Device Settings > Common Device Configuration.

IP Addressing Mode

Preference for Signaling

Indicates the IP address version that the phone uses during signaling with Cisco Unified Communications Manager when both IPv4 and IPv6 are available on the phone.

Displays one of the following options on the phone:

• Use System Default—The dual-stack phone uses the default system addressing
• IPv4—The dual-stack phone prefers to establish a connection via an IPv4 address during a signaling event
• IPv6—The dual-stack phone prefers to establish a connection via an IPv6 address during a signaling event

Default: Use System Default

From Cisco Unified Communications Manager

Administration, choose Device >

Device Settings > Common

Device Configuration.

Auto IP Configuration

Displays whether the auto configurations is enabled or disabled on the phone.

The Auto IP Configuration setting along with the DHCPv6 setting determine how the IP Phone obtains its IPv6 address and other network settings. For more information on how these two settings affect the network settings on the phone, see DHCPv6 and Auto configuration

Note

Use the “Allow Auto-Configuration for Phones”

setting in Cisco Unified Communications Manager

Administration.

From Cisco Unified Communications Manager Administration, choose Device > Device Settings > Common Device Configuration.

IPv6 Load Server

Used to optimize installation time for phone firmware upgrades and off load the WAN by storing images locally, negating the need to traverse the WAN link for each phone's upgrade.

You can set the Load Server to another TFTP server IP address or name other than the IPv6 TFTP Server 1 or IPv6 TFTP Server 2 from which the phone firmware can be retrieved for phone upgrades. When the Load Server option is set, the phone contacts the designated server for the firmware upgrade.

Note

The Load Server option allows you to specify an alternate TFTP server for phone upgrades only. The phone continues to use IPv6 TFTP Server 1 or IPv6 TFTP Server 2 to obtain configuration files. The Load Server option does not provide management of the process and of the files, such as file transfer, compression, or deletion.

Note

When you configure both an IPv6 Load Server and a Load Server (for IPv4), the IPv6 Load server takes precedence.

Use Cisco Unified Communications

Manager Administration to modify.

IPv6 Log Server

Indicates the IP address and port of the remote logging machine to which the phone sends log messages. These log messages help in debugging the peer to peer image distribution feature.

Note

The remote logging setting does not affect the sharing log messages sent to the phone log.

Use Cisco Unified Communications

Manager Administration to modify.