Cisco Systems 7970G manual Refer to Cisco Unified CallManager, Security Configuration Menu section

Chapter 4 Configuring Settings on the Cisco Unified IP Phone

			Network Configuration Menu
Table 4-2 Network Configuration Menu Options (continued)
Option	Description	To Change
Subnet Mask	Subnet mask used by the phone.	1.	Unlock network configuration
			options.
		2.	Set the DHCP Enabled option to No.
		3.	Scroll to the Subnet Mask option,
			press the Edit softkey, and then
			enter a new subnet mask.
		4.	Press the Validate softkey and then
			press the Save softkey.
TFTP Server 1	Primary Trivial File Transfer Protocol	1.	Unlock the CTL file, if necessary.
	(TFTP) server used by the phone. If you	2.	If DHCP is enabled, set the Alternate
	are not using DHCP in your network and
			TFTP option to Yes.
	you want to change this server, you
		3.	Scroll to the TFTP Server 1 option,
	must use the TFTP Server 1 option.
	If you set the Alternate TFTP option to		press the Edit softkey, and then
			enter a new TFTP server IP address.
	yes, you must enter a non-zero value for
		4.	Press the Validate softkey, and then
	the TFTP Server 1 option.
	If neither the primary TFTP server nor		press the Save softkey.
	the backup TFTP server is listed in the
	CTL file on the phone, you must unlock
	the CTL file before you can save
	changes to the TFTP Server 1 option. In
	this case, the phone will delete the CTL
	file when you save changes to the TFTP
	Server 1 option.
	For information about the CTL file,
	refer to Cisco Unified CallManager
	Security Guide. For information about
	unlocking the CTL file, see the
	“Security Configuration Menu” section
	on page 4-37.

Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones

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