Cisco Systems 7906G, 7911G - page 68

Chapter2 Preparing to Install the Cisco Unified IP Phone on You r Network
Understanding the Phone Startup Process
2-10
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
OL-10008-01
7. Requesting the
Configuration File.
The TFTP server has configuration files, which
define parameters for connecting to
Cisco Unified CallManager 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.
8. Contacting
CiscoUnified Call
Manager.
The configuration file defines how the
Cisco UnifiedIP Phone communicates with
Cisco UnifiedCallManager 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 CallManager 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 UnifiedCallManager identifies the phone.
If the phone was not manually added to the
database and auto-registration is enabled in
Cisco Unified CallManager, the phone attempts to
auto-register itself in the
Cisco UnifiedCallManager database.
Note Auto-registration is disabled when
security is enabled on
Cisco UnifiedCallManager. In this case,
the phone must be manually added to the
Cisco Unified CallManager database.
See the “Resolving
Startup Problems”
section on page 9-2.
Table2-3 CiscoUnified IP Phone Startup Process (continued)
Step Description Related Topics