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CHAPTER
2-1
Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G
OL-6313-01
2
Preparing to Install the Cisco IP Phone
on Your Network
Cisco 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 components, including Cisco CallManager.
These sections provide you with an important overview of the interaction between
the Cisco IP Phone models 7902G/7905G/7912G and other key components of the
Voice over IP (VoIP) network:
• Understanding Interactions with Other Cisco IP Telephony Products,
page 2-1
• Understanding the Phone Startup Process, page 2-4
• Guidelines for Configuring Ports on the Cisco IP Phone models
7902G/7905G/7912G, page 2-8
• Adding Phones to the Cisco CallManager Database, page 2-12
Understanding Interactions with Other
Cisco IP Telephony Products
To function in the IP telephony network, the Cisco IP Phone must be connected
to a networking device, such as a Cisco Catalyst switch. You must also register
the Cisco IP Phone with a Cisco CallManager system before sending and
receiving calls.