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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Understanding the Phone Startup Process
2-10
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 6.1
OL-14587-01
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.
See the “Understanding Phone
Configuration Files” section on page 2-6.
See the “Resolving Startup Problems”
section on page 9-2.
Step 8
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.
See the “Resolving Startup Problems”
section on page 9-2.
Table 2-3 Cisco Unified IP Phone Startup Process (continued)
Process Step and Purpose Related Topics