Chapter 1 An Overview of Cisco IP Communicator
Understanding the Startup Process
1-10
Cisco IP Communicator Administration Guide for Cisco CallManager
OL-4698-01
functionality with the corporate IP network. Cisco CallManager manages all
components of the IP telephony system—the phone devices, access gateways, and
the resources necessary for such features as call conferencing and route planning.
You can register Cisco IP Communicator with Cisco CallManager system
versions 3.3(3) SR 3 or later. As you would do with other Cisco IP Phones that
rely on Cisco CallManager, you must configure and manage
Cisco IP Communicator as a network device via the Cisco CallManager
Administration web application.
You can get context-sensitive help for any page in the Cisco CallManager
Administration web application by choosing Help > For this page from the main
menu bar. Additionally, some panels within a page display an “i” button that you
can click to access context-sensitive help for that panel.
For complete instructions and conceptual information about using
Cisco CallManager, refer to Cisco CallManager Administration Guide and Cisco
CallManager System Guide. You can access these and other Cisco CallManager
documents from the online help window or from Cisco.com:
http://www.cisco.com/univercd/cc/td/doc/product/voice/index.htm
Related Topics
• Understanding QoS Modifications, page 1-12
• Understanding the Startup Process, page 1-10
• Installation Prerequisites, page 2-2
• Telephony Features Available for Cisco IP Communicator, page 5-2
Understanding the Startup Process
The sections below describe how Cisco IP Communicator interacts with the
network at startup.
Step One—Locating the Configuration Server
Upon startup, Cisco IP Communicator always attempts to use DHCP to locate its
Trivial File Transfer Protocol (TFTP) server. Like other phones,
Cisco IP Communicator can use TFTP to retrieve files from the server.
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