Cisco Systems OL-8555-01 manual To Cisco Unified CallManager Security Guide

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

Understanding the Phone Startup Process

Table 2-1 Cisco Unified IP Phone Startup Process (continued)

Step	Description	Related Topics
4. Obtaining an IP	If the Cisco Unified IP Phone is using DHCP to	•	Network
Address.	obtain an IP address, the phone queries the DHCP		Configuration
	server to obtain one. If you are not using DHCP in		Menu Options,
	your network, you must assign static IP addresses		page 4-3.
	to each phone locally.	•	Resolving Startup
			Problems,
			page 8-2.
5. Accessing a TFTP	In addition to assigning an IP address, the DHCP	•	Network
Server.	server directs the Cisco Unified IP Phone to a		Configuration
	TFTP Server. If the phone has a statically-defined		Menu Options,
	IP address, you must configure the TFTP server		page 4-3
	locally on the phone; the phone then contacts the	•	Resolving Startup
	TFTP server directly.
			Problems,
			page 8-2.
6. Requesting the CTL	Before requesting a configuration file, a phone	•	Configuring
file.	accesses a CTL file. If you want a phone to use		Security on the
	security features, the CTL file should be available.		Cisco Unified IP
	For information about creating the CTL file, refer		Phone, page 3-16
	to Cisco Unified CallManager Security Guide.

	Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 4.2, Cisco Unified IP Phones
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