Cisco Systems OL-8148-01 manual Unified CallManager

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding the Phone Startup Process

Table 2-4 Cisco Unified IP Phone Startup Process (continued)

Process Step	Description	Related Topics
5. Accessing a TFTP	In addition to assigning an IP address, the DHCP	See the “Network
Server	server directs the Cisco Unified IP Phone to a	Configuration Menu”
	TFTP Server. If the phone has a statically-defined	section on page 4-7.
	IP address, you must configure the TFTP server	See the “Resolving
	locally on the phone; the phone then contacts the
		Startup Problems”
	TFTP server directly.
		section on page 9-2.
	Note You can also assign an alternative TFTP
	server to use instead of the one assigned by
	DHCP.
6. Requesting the CTL	The TFTP server stores the certificate trust list	Refer to the Cisco
file	(CTL) file. This file contains a list of Cisco	Unified CallManager
	Unified CallManagers and TFTP servers that the	Security Guide,
	phone is authorized to connect to. It also contains	“Configuring the Cisco
	the certificates necessary for establishing a secure	CTL Client” chapter.
	connection between the phone and Cisco
	Unified CallManager.
7. Requesting the	The TFTP server has configuration files, which	See the “Understanding
Configuration File	define parameters for connecting to Cisco	Phone Configuration
	Unified CallManager and other information for	Files” section on
	the phone.	page 2-8.
		See the “Resolving
		Startup Problems”
		section on page 9-2.

	Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SCCP), Cisco Unified IP Phones
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