C H A P T E R
2-1
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 7.0 (SCCP and SIP)
OL-15790-01
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 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 Unified IP Phone 7975G 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 7975G and
other key components of the Voice over IP (VoIP) network. It includes these topics:
•
Understanding Interactions with Other Cisco Unified IP Communications Products, page 2-1
•
Providing Power to the Phone, page 2-3
•
Understanding Phone Configuration Files, page 2-5
•
Understanding the Phone Startup Process, page 2-7
•
Adding Phones to the Cisco Unified Communications Manager Database, page 2-8
•
Using Cisco Unified IP Phones with Different Protocols, page 2-12
•
Determining the MAC Address of a Cisco Unified IP Phone, page 2-13
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 sending and receiving calls.
This section includes these topics:
•
Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications
Manager, page 2-2
•
Understanding How the Cisco Unified IP Phone Interacts with the VLAN, page 2-2