Cisco Systems 7970G manual Understanding, Files

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)
Step		Description	Related Topics
7. Requesting the		The TFTP server has configuration files, which	•	Understanding
Configuration File.		define parameters for connecting to Cisco		Phone
		Unified CallManager and other information for		Configuration
		the phone.		Files, page 2-8
			•	Resolving Startup
				Problems,
				page 9-2.
8. Contacting Cisco		The configuration file defines how the Cisco	Resolving Startup
Unified CallManager.		Unified IP Phone communicates with Cisco	Problems, page 9-2.
		Unified CallManager 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 CallManager on
		the list. If security is implemented, the phone
		makes a TLS connection. Otherwise, it makes a
		non-secure TCP connection.
		If the phone was manually added to the database,
		Cisco Unified CallManager identifies the phone.
		If the phone was not manually added to the
		database and auto-registration is enabled in Cisco
		Unified CallManager, the phone attempts to
		auto-register itself in the Cisco
		Unified CallManager database.
		Note Auto-registration is disabled when
		security is enabled on Cisco
		Unified CallManager. In this case, the
		phone must be manually added to the
		Cisco Unified CallManager database.

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