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C H A P T E R 2

Preparing to Install the Cisco Unified IP Phone on Your Network

Cisco Unified IP Phones enable you to communicate by 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 components, including Cisco Unified Communications Manager.

This chapter focuses on the interactions between the Cisco Unified IP Phone 6901 and 6911 and Cisco Unified Communications Manager, DNS and DHCP servers, TFTP servers, and switches. It also describes options for powering phones.

For related information about voice and IP communications, refer to this URL:

http://www.cisco.com/en/US/products/sw/voicesw/index.html

This chapter provides an overview of the interaction between the Cisco Unified IP Phone and other key components of the Voice over IP (VoIP) network. It includes the following topics:

Understanding Interactions with Other Cisco Unified IP Telephony Products, page 2-1

Providing Power to the Cisco Unified IP Phone, page 2-3

Understanding Phone Configuration Files, page 2-5

Understanding the Phone Startup Process, page 2-6

Adding Phones to the Cisco Unified Communications Manager Database, page 2-7

Determining the MAC Address for a Cisco Unified IP Phone, page 2-11

Understanding Interactions with Other Cisco Unified IP Telephony 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 sending and receiving calls.

This section includes the following topics:

Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager, page 2-2

Understanding How the Cisco Unified IP Phone 6911 Interacts with the VLAN, page 2-2

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP)

 

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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Understanding Interactions with Other Cisco Unified IP Telephony Products

Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager

Cisco Unified Communications Manager is an open and industry-standardcall processing system. Cisco Unified Communications Manager software sets up and tears down calls between phones, integrating traditional PBX functionality with the corporate IP network. Cisco Unified Communications Manager manages the components of the IP telephonysystem—thephones, the access gateways, and the resources necessary for features such as call conferencing and route planning. Cisco Unified Communications Manager also provides:

Firmware for phones

Configuration file via TFTP service

Phone registration

Call preservation, so that a media session continues if signaling is lost between the primary Communications Manager and a phone

For information about configuring Cisco Unified Communications Manager to work with the IP devices described in this chapter, go to the Cisco Unified IP Phone Configuration chapter in the

Cisco Communications Manager Administration Guide.

For an overview of security functionality for the Cisco Unified IP Phone, see the “Understanding Security Features for Cisco Unified IP Phones” section on page 1-10.

Note If the Cisco Unified IP Phone model that you want to configure does not appear in the Phone Typedrop-downlist in Cisco Unified Communications Manager Administration, go to the following URL and install the latest support patch for your version of Cisco Unified Communications Manager:http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=278875240

For more information, refer to “Software Upgrades” chapter in the Cisco Unified Communications Operating System Administration Guide.

Related Topic

Telephony Features Available for the Cisco Unified IP Phone, page 5-1

Understanding How the Cisco Unified IP Phone 6911 Interacts with the VLAN

The Cisco Unified IP Phone 6911 has 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.

Note Cisco Unified IP Phone 6901 does not support VLANs.

If a computer is connected to the access port, the computer and the phone share the same physical link to the switch and share the same port on the switch. This shared physical link has the following implications for the VLAN configuration on the network:

The current VLANs might be configured on an IP subnet basis. However, additional IP addresses might not be available to assign the phone to the same subnet as other devices connected to the same port.

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP)

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