Cisco Systems 6901 manual Obtaining an IP Address

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

Adding Phones to the Cisco Unified Communications Manager Database

Table 2-3	Cisco Unified IP Phone Startup Process (continued)
Task	Purpose	Related Topics
3.	Obtaining an IP Address	• Configuring Settings on the
	If the Cisco Unified IP Phone is using DHCP to obtain an IP address, the		Cisco Unified IP Phone,
			page 4-1.
	phone queries the DHCP server to obtain one. If you are not using DHCP in
	your network, you must assign static IP addresses to each phone locally.	•	Resolving Startup Problems,
			page 7-1.
4.	Accessing a TFTP Server	• Configuring Settings on the
	In addition to assigning an IP address, the DHCP server directs the		Cisco Unified IP Phone,
			page 4-1.
	Cisco Unified IP Phone to a TFTP Server. If the phone has a statically
	defined IP address, you must configure the TFTP server locally on the	•	Resolving Startup Problems,
	phone; the phone then contacts the TFTP server directly.		page 7-1.
	Note You can also assign an alternative TFTP server to use instead of the
	one assigned by DHCP.
5.	Requesting the Configuration File	• Adding Phones to the Cisco
	The TFTP server has configuration files, which define parameters for		Unified Communications
			Manager Database, page 2-7.
	connecting to Cisco Unified Communications Manager and other
	information for the phone.	•	Resolving Startup Problems,
			page 7-1.
6.	Loading the Stored Phone Image	Resolving Startup Problems,
	The Cisco Unified IP Phone has non-volatile Flash memory in which it	page 7-1.
	stores firmware images and user-defined preferences. At startup, the phone
	runs a bootstrap loader that loads a phone image stored in Flash memory.
	Using this image, the phone initializes its software and hardware.
7.	Contacting Cisco Unified Communications Manager	Resolving Startup Problems,
	The configuration file defines how the Cisco Unified IP Phone	page 7-1.
	communicates with Cisco Unified Communications Manager and provides
	a phone with its load ID. After obtaining the file from the TFTP server, the
	phone attempts to make a connection to the highest priority Cisco
	Unified Communications Manager on the list.
	If the phone was manually added to the database, Cisco
	Unified Communications Manager identifies the phone. If the phone was
	not manually added to the database and auto-registration is enabled in Cisco
	Unified Communications Manager, the phone attempts to auto-register itself
	in the Cisco Unified Communications Manager database.

Adding Phones to the Cisco Unified Communications Manager Database

Before installing the Cisco Unified IP phone, you must choose a method for adding phones to the Cisco Unified Communications Manager database. Be aware that each phone type requires a fixed number of device license units and the number of unit licenses that are available on the server may impact phone registration. For more information on licensing go to the Licenses for Phones section in the Cisco Unified Communications Manager System Guide

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

OL-23874-01 2-7