Cisco Systems 8961 manual Go to Product Specific Configuration, Simultaneously

Chapter 8 Configuring Features, Templates, Services, and Users

Telephony Features Available for the Cisco Unified IP Phone

Table 8-1	Telephony Features for the Cisco Unified IP Phone (continued)
Feature		Description		Configuration Reference
Peer Firmware Sharing		The Peer Firmware Sharing feature provides these		1. Go to Cisco Unified CM Administration >
		advantages in high speed campus LAN settings:		Device > Phone.
		• Limits congestion on TFTP transfers to		2. Find your phone from the list of phones
			centralized remote TFTP servers	associated with the Cisco Unified CM.
		• Eliminates the need to manually control		3. Click on the Device Name of the phone.
			firmware upgrades	The Phone Configuration window
		• Reduces phone downtime during upgrades		appears.
			when large numbers of devices are reset	4. Go to Product Specific Configuration
			simultaneously
				Layout area and select Enable from the
		Peer Firmware Sharing may also aid in firmware
				Peer Firmware Sharing drop-down list
		upgrades in branch/remote office deployment		box.
		scenarios running over bandwidth-limited WAN		The Peer Firmware Sharing is enabled by
		links.
				default.
		When enabled, it allows the phone to discover like
				Check the “Override Common Settings” check
		phones on the subnet that are requesting the files		box for any setting in Product Specific
		that make up the firmware image, and to
				Configuration area that you wish to update.
		automatically assemble transfer hierarchies on a
				• If you do not check this check box, the
		per-file basis. The individual files making up the
		firmware image are retrieved from the TFTP server		corresponding parameter setting does not
		by only the root phone in the hierarchy, and are		take effect.
		then rapidly transferred down the transfer		• Parameters that you set in the Product
		hierarchy to the other phones on the subnet using		Specific Configuration area may also
		TCP connections.		appear in the Phone Configuration
		This menu option indicates whether the phone		window for various devices and in the
		supports peer firmware sharing. Settings include:		Enterprise Phone Configuration window.
		•	Enabled—default	If you set these same parameters in these other
		•	Disabled	windows too, the setting that takes precedence
				is determined in the following order:
		Note Phone firmware release 9.1(1) supports
				1. Device Configuration window settings,
			HTTP and TFTP firmware downloads
				2. Common Phone Profile window settings
			methods.
				3. Enterprise Phone Configuration window
				settings.
Phone secure web		Cisco Unified IP Phones can now securely access		Cisco Unified Communications Manager
access		the web with the use of a phone trust store called		Security Guide, “Security Overview” chapter.
		“phone-trust.”
Plus Dialing		Allows the user to dial E.164 numbers prefixed		Requires no configuration.
		with a “+” sign.
		To dial the + sign, the user needs to press and hold
		the “*” key for at least 1 second. This applies to
		dialing the first digit for an on-hook or off-hook
		call only.

	Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)
OL-20861-01		8-17