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CHAPTER
2
Preparing to Install the Cisco Unified IP Phone on
Your Network
Cisco Unified IP Phones enable you to communicate using voice over a data network. To provide this
capability, the IP Phones depend upon and interact with several other key Cisco Unified IP Telephony
and network components, including Cisco Unified Communications Manager, DNS and DHCP servers,
TFTP servers, media resources, Cisco prestandard PoE, and so on.
This chapter focuses on the interactions between the Cisco Un
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding Interactions with Other Cisco Unified IP Communications Products Understanding Interactions with Other Cisco Unified IP Communications Products To function in the IP telephony network, the Cisco Unified IP Phone must be connected to a networking device, such as a Cisco Catalyst switch. You must also register the Cisco Unified IP Phone with a Cisco Unified Communications Manager system before sendi
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding Interactions with Other Cisco Unified IP Communications Products Understanding How the Cisco Unified IP Phone Interacts with the VLAN The Cisco Unified IP Phones 7975G, 7971G-GE, 7970G, 7965G, and 7945G have an internal Ethernet switch, enabling forwarding of packets to the phone, and to the access port and the network port on the back of the phone. If a computer is connected to the access port, th
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone Providing Power to the Phone Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G can be powered with external power or with Power over Ethernet (PoE). External power is provided through a separate power supply. PoE is provided by a switch through the Ethernet cable attached to a phone. Note When you install a phone that is powered with external power, connect the power su
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone Phone Power Consumption and Display Brightness The power consumed by a phone depends on its power configuration. See Table 2-1 for a power configuration overview. See Table 2-2 for the maximum power consumed by a phone for each configuration option and the correlating phone screen brightness level. Note Power consumption values shown in the table include power losses in the cable tha
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone Power Outage Your accessibility to emergency service through the phone is dependent on the phone being powered. If there is an interruption in the power supply, Service and Emergency Calling Service dialing will not function until power is restored. In the case of a power failure or disruption, you may need to reset or reconfigure equipment before using the Service or Emergency Call
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding Phone Configuration Files Understanding Phone Configuration Files Configuration files for a phone are stored on the TFTP server and define parameters for connecting to Cisco Unified Communications Manager. In general, any time you make a change in Cisco Unified Communications Manager that requires the phone to be reset, a change is automatically made to the phone’s configuration file. Configuratio
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding Phone Configuration Files The filenames are derived from the MAC Address and Description fields in the Phone Configuration window of Cisco Unified Communications Manager Administration. The MAC address uniquely identifies the phone. For more information refer to Cisco Unified Communications Manager Administration Guide. For more information about how the phone interacts with the TFTP server, refer
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding the Phone Startup Process Understanding the Phone Startup Process When connecting to the VoIP network, the Cisco Unified IP Phone goes through a standard startup process, as described in Table 2-4. Depending on your specific network configuration, not all of these process steps may occur on your Cisco Unified IP Phone. Table 2-4 Cisco Unified IP Phone Startup Process Task Purpose Related Topics 1.
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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) Task Purpose Related Topics 7. Requesting the ITL file. Refer to Cisco Unified Communications Manager Security Guide, Security by Default. The phone requests the ITL file after it requests the CTL file. The ITL file contains the certificates of the entities that the phone can trust. The certificates are used for
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to 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. These sections describe the methods: � Adding Phones with Auto-Registration, page 2-11 � Adding Phones with Auto-Registration and TAPS, pa
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified Communications Manager Database Note Cisco recommends you use auto-registration to add less than 100 phones to your network. To add more than 100 phones to your network, use the Bulk Administration Tool (BAT). See Adding Phones with BAT, page 2-13. Auto-registration is disabled by default. In some cases, you may not want to use auto-registration; for example, if you want to as
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified Communications Manager Database Related Topics � Adding Phones with Auto-Registration, page 2-11 � Adding Phones with Cisco Unified Communications Manager Administration, page 2-13 � Adding Phones with BAT, page 2-13 Adding Phones with Cisco Unified Communications Manager Administration You can add phones individually to the Cisco Unified Communications Manager database using Ci
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Using Cisco Unified IP Phones with Different Protocols Step 6 From Cisco Unified Communications Manager, choose Device > Phone > Add New to add a phone using an already created BAT phone template. For detailed instructions about using BAT, refer to the Cisco Unified Communications Manager Bulk Administration Guide. For more information on creation of BAT Phone Templates, see the Cisco Unified Communications Man
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Determining the MAC Address of a Cisco Unified IP Phone Converting an In-Use Phone from One Protocol to the Other Protocol For information about how to convert an in-use phone from one protocol to the other, see the Cisco Unified Communications Manager Administration Guide, Cisco Unified IP Phone Configuration, section Migration Existing Phone Configuration to a Different Phone. Deploying a Phone in an SCCP and
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Determining the MAC Address of a Cisco Unified IP Phone Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5 2-16 OL-23092-01
