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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 IP Telephony and network components, including
Cisco Unified CallManager, DNS and DHCP servers, TFTP servers, media
resources, Cisco prestandard PoE, and so on.
This chapter focuses on the interactions between the Cisco Unified IP Phone 797
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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 � Using Cisco Unified IP Phones with Different Protocols, page 2-16 � Determining the MAC Address of a Cisco Unified IP Phone, page 2-18 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 Ci
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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 For information about configuring Cisco Unified CallManager to work with the IP devices described in this chapter, refer to Cisco Unified CallManager Administration Guide, Cisco Unified CallManager System Guide, and to Cisco Unified CallManager Security Guide. For an overview of security functionality for the Cisco Unified IP Phone, se
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone You can resolve these issues by isolating the voice traffic onto a separate VLAN. The switch port that the phone is connected to would be configured to have separate VLANs for carrying: � Voice traffic to and from the IP phone (auxiliary VLAN, on the Cisco Catalyst 6000 series, for example) � Data traffic to and from the PC connected to the switch through the access port of the IP p
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone � Power Outage, page 2-7 � Obtaining Additional Information about Power, page 2-7 Power Guidelines Table 2-1 provides guidelines that apply to external power and to PoE power for phones the Cisco Unified IP Phone 7970 Series. Table 2-1 Guidelines for Powering the Cisco Unified IP Phone 7970 Series Power Type Guidelines External power— � The Cisco Unified IP Phone 7970G and 7971G-GE use
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone Table 2-2 Power Consumption and Display Brightness for Power Configurations Max. Power Phone Consumed Screen Phone Model Power Configuration from a Switch Brightness Cisco Unified Cisco prestandard PoE from a switch that supports a 6.3 W Approx. 1/2 IP Phone maximum of 7 W power per port, with bidirectional 7970G power negotiation enabled Cisco prestandard PoE from a Cisco Switch that
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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 Calli
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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 CallManager. In general, any time you make a change in Cisco Unified CallManager that requires the phone to be reset, a change is made to the phone’s configuration file automatically. Configuration files also contain inf
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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 Process Step Description Related
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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) Process Step Description Related Topics 5. Accessing a TFTP In addition to assigning an IP address, the DHCP See the “Network Server server directs the Cisco Unified IP Phone to a Configuration Menu” TFTP Server. If the phone has a statically-defined section on page 4-7. IP address, you must configure the TFTP serv
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified CallManager Database Table 2-4 Cisco Unified IP Phone Startup Process (continued) Process Step Description Related Topics 8. Contacting Cisco The configuration file defines how the Cisco See the “Resolving Unified CallManager Unified IP Phone communicates with Cisco Startup Problems” Unified CallManager and provides a phone with section on page 9-2. its load ID. After obtaining t
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified CallManager Database Table 2-5 provides an overview of these methods for adding phones to the Cisco Unified CallManager database. Table 2-5 Methods for Adding Phones to the Cisco Unified CallManager Database Requires MAC Method Address? Notes Auto-registration No Provides no control over directory number assignment to phone. Not available when security or encryption is enable
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified CallManager Database � Quickly enter phones into the Cisco Unified CallManager database and modify any settings, such as the directory numbers, from Cisco Unified CallManager. � Move auto-registered phones to new locations and assign them to different device pools without affecting their directory numbers. Note You should use auto-registration to add less than 100 phones to your
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified CallManager Database You can add phones with auto-registration and TAPS without first gathering MAC addresses from phones. Note You should use auto-registration and TAPS 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 the “Adding Phones with BAT” section on page 2-15. To implement TAPS, you or
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified CallManager Database After you have collected MAC addresses, in Cisco Unified CallManager Administration, choose Device > Phone and click Add New to begin. For complete instructions and conceptual information about Cisco Unified CallManager, refer to Cisco Unified CallManager Administration Guide and to Cisco Unified CallManager System Guide. Related Topics � Adding Phones with
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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 Using Cisco Unified IP Phones with Different Protocols The Cisco Unified IP Phone can operate with SCCP (Skinny Client Control Protocol) or SIP (Session Initiation Protocol). You can convert a phone that is using one protocol for use with the other protocol. This section includes these topics: � Converting a New Phone from SCCP to SIP, page 2-16 � Converting
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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 See the “Configuring Startup Network Settings” section on page 3-14. Step 3 Power cycle the phone. Converting an In-Use Phone from SCCP to SIP You can use the Bulk Administration Tool (BAT) to convert a phone that is in use in your network from SCCP to SIP. To access BAT from Cisco Unified CallManager Administration, choose Bulk Administration > Phones > Migra
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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 To do so, from Cisco Unified CallManager Administration, choose System > Enterprise Parameters. 2. Install the phones. 3. Change the auto_registration_protocol parameter to SIP. 4. Auto-register the SIP phones. Determining the MAC Address of a Cisco Unified IP Phone You can determine the MAC address for a phone in any of these ways: � From the phone, choose S
