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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 phones depend upon and interact with several other key Cisco IP Telephony and network
components, including Cisco Unified CM, Domain Name System (DNS) and DHCP servers, TFTP
servers, media resources, and Cisco prestandard PoE.
This chapter focuses on the interactions between the Cisco Unified IP Phone 79
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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 Cisco Unified CM Cisco Unified CM is an open and industry-standard call processing system. Cisco Unified CM software sets up and tears down calls between phones, integrating traditional PBX functionality with the corporate IP network. Cisco Unified CM manages the components
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone � Data traffic to and from the PC connected to the switch through the access port of the IP phone (native VLAN) Isolating the phones on a separate, auxiliary VLAN improves the quality of the voice traffic and allows a large number of phones to be added to an existing network where there are not enough IP addresses for each phone. For more information, refer to the documentation incl
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Providing Power to the Phone Power Guidelines Table 2-1 provides guidelines that apply to external power and to PoE power for the Cisco Unified IP Phones 7931G. Table 2-1 Guidelines for Powering the Cisco Unified IP Phones 7931G Power Type Guidelines External power— The CP-PWR-CUBE-3 external power supply may be used with the Provided through a Cisco Cisco Unified IP Phones 7931G. external power supply. External
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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 CM. In general, any time you make a change in Cisco Unified CM that requires the phone to be reset, a change is made automatically to the phone configuration file. Configuration files also contain information about whic
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding the Phone Startup Process For more information about how the phone interacts with the TFTP server, see the Cisco Unified Communications Manager System Guide, Cisco TFTP. 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 2-2. Depending on your network configuration, not all of these p
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to Cisco Unified CM Table 2-2 Cisco Unified IP Phone Startup Process (continued) No. Process Description Related Topics 7. Requesting the ITL file. The phone requests the ITL file after it requests the CTL See the Cisco Unified file. The ITL file contains the certificates of the entities Communications Manager that the phone can trust. The certificates are used for Security Guide, Security by auth
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to Cisco Unified CM Table 2-3 Methods for Adding Phones to the Cisco Unified CM Database Requires MAC Method Address? Notes Auto-registration No Results in automatic assignment of directory numbers. Not available when security or encryption is enabled. Auto-registration No Requires auto-registration and the Bulk Administration Tool (BAT); with TAPS updates the Cisco Unified CM database with the MA
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to Cisco Unified CM � Adding Phones with Cisco Unified CM Administration, page 2-9 � Adding Phones with BAT, page 2-10 Adding Phones with Auto-Registration and TAPS You can add phones with auto-registration and TAPS, the Tool for Auto-Registered Phones Support, without first gathering MAC addresses from phones. TAPS works with the Bulk Administration Tool (BAT) to update a batch of phones that were
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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 Related Topics � Adding Phones with Auto-Registration, page 2-8 � Adding Phones with Auto-Registration and TAPS, page 2-9 � Adding Phones with BAT, page 2-10 Adding Phones with BAT The Cisco Unified Communications Bulk Administration Tool (BAT), which is a menu option in Cisco Unified CM Administration, enables you to perform batch operations, which includes
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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 � Deploying a Phone in an SCCP and SIP Environment, page 2-11 Converting a New Phone from SCCP to SIP A new, unused phone is set for SCCP by default. To convert this phone to SIP, perform these steps: Procedure Step 1 Take one of these actions: � To auto-register the phone, set the Auto Registration Phone Protocol enterprise parameter in Cisco Unified CM Admi
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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 Determining the MAC Address of a Cisco Unified IP Phone Several of the procedures that are described in this manual require you to determine the MAC address of a Cisco Unified IP Phone. You can determine the MAC address for a phone in any of these ways: � If the phone is registered with Cisco Unified CM, press the Application Menu button, then choose Settin
