Cisco Systems 7970G manual Step Description Related Topics

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
Step		Description	Related Topics
1. Obtaining Power		If a phone is not using external power, the switch	•	Providing Power to
from the Switch.		provides in-line power through the Ethernet cable		the Phone,
		attached to the phone.		page 2-4.
			•	Resolving Startup
				Problems,
				page 9-2.
2. Loading the Stored		The Cisco Unified IP Phone has non-volatile Flash	Resolving Startup
Phone Image.		memory in which it stores firmware images and	Problems, page 9-2.
		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.
3. Configuring VLAN.		If the Cisco Unified IP Phone is connected to a	•	Network
		Cisco switch, the switch next informs the phone of		Configuration
		the voice VLAN defined on the switch port. The		Menu, page 4-7.
		phone needs to know its VLAN membership	•	Resolving Startup
		before it can proceed with the Dynamic Host
				Problems,
		Configuration Protocol (DHCP) request for an IP
				page 9-2.
		address.
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, page 4-7.
		your network, you must assign static IP addresses	•	Resolving Startup
		to each phone locally.
				Problems,
				page 9-2.

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