Cisco 7941G Administration Guide - Page 56

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Understanding Interactions with Other Cisco Unified IP Telephony Products • Determining the MAC Address for a Cisco Unified IP Phone, page 2-21 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 Interacts with the VLAN, page 2-3 Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager Cisco Unified Communications Manager is an open and industry-standard call 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 telephony system-the phones, 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 • Authentication and encryption (if configured for the telephony system) • Configuration file and CTL 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 Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1 2-2 OL-14620-01