Cisco 7962G Administration Guide - Page 44

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network Adding Phones to the Cisco Unified Communications Manager Database Table 2-3 Cisco Unified IP Phone Startup Process (continued) Configuration Step and Description Related Topics Step 6 Requesting the CTL file The TFTP server stores the certificate trust list (CTL) file. This file contains a list of Cisco Unified Communications Managers and TFTP servers that the phone is authorized to connect to. It also contains the certificates necessary for establishing a secure connection between the phone and Cisco Unified Communications Manager. Refer to the Cisco Unified Communications Manager Security Guide, "Configuring the Cisco CTL Client" chapter. Step 7 Requesting the Configuration File The TFTP server has configuration files, which define parameters for connecting to Cisco Unified Communications Manager and other information for the phone. • Adding Phones to the Cisco Unified Communications Manager Database, page 2-8 • Resolving Startup Problems, page 9-2. Step 8 Contacting Cisco Unified Communications Manager • Resolving Startup Problems, page 9-2. The configuration file defines how the Cisco Unified IP Phone communicates with Cisco Unified Communications Manager and provides a phone with its load ID. After obtaining the file from the TFTP server, the phone attempts to make a connection to the highest priority Cisco Unified Communications Manager on the list. If security is implemented, the phone makes a TLS connection. Otherwise, it makes a non-secure TCP connection. If the phone was manually added to the database, Cisco Unified Communications Manager identifies the phone. If the phone was not manually added to the database and auto-registration is enabled in Cisco Unified Communications Manager, the phone attempts to auto-register itself in the Cisco Unified Communications Manager database. Note Auto-registration is disabled when security is enabled on Cisco Unified Communications Manager. In this case, the phone must be manually added to the Cisco Unified Communications Manager database. Adding Phones to the Cisco Unified Communications Manager Database Before installing the Cisco Unified IP phone, you must choose a method for adding phones to the Cisco Unified Communications Manager database. These sections describe the methods: • Adding Phones with Auto-Registration, page 2-9 Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1 2-8 OL-14625-01