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Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
OL-23089-01
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Adding Phones to Cisco Unified CM
Adding Phones to Cisco Unified CM
Before installing the Cisco Unified IP Phone, you must choose a method for adding phones to the
Cisco Unified CM database. These sections describe the methods:
• Adding Phones with Auto-Registration, page 2-8
• Adding Phones with Auto-Registration and TAPS, page 2-9
• Adding Phones with Cisco Unified CM Administration, page 2-9
• Adding Phones with BAT, page 2-10
Table 2-3 provides an overview of these methods for adding phones to the Cisco Unified CM database.
7. Requesting the ITL file. The phone requests the ITL file after it requests the CTL
file. The ITL file contains the certificates of the entities
that the phone can trust. The certificates are used for
authenticating a secure connection with the servers or
authenticating a digital signature signed by the servers.
The ITL file is available to the phone only on Cisco
Unified CM 8.0 and later.
See the Cisco Unified
Communications Manager
Security Guide, Security by
Default.
8. Requesting the
Configuration file.
The TFTP server has configuration files, which define
parameters for connecting to Cisco Unified CM and
other information for the phone.
See Understanding Phone
Configuration Files, page 2-5.
See Resolving Startup Problems,
page 9-1.
9. Contacting Cisco Unified
Communications
Manager.
The configuration file defines how the Cisco
Unified IP Phone communicates with Cisco Unified CM
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 CM on
the list. If the security profile of the phone is configured
for secure signaling (encrypted or authenticated) and the
Cisco Unified CM is set to secure mode, the phone makes
a TLS connection. Otherwise, it makes a nonsecure
TCP connection.
If the phone was manually added to the database, Cisco
Unified CM identifies the phone. If the phone was not
added manually to the database and auto-registration is
enabled in Cisco Unified CM, the phone attempts to
auto-register itself in the Cisco Unified CM database.
Note Auto-registration is disabled when security is
enabled on Cisco Unified CM. In this case, the
phone must be manually added to the Cisco
Unified CM database.
See Resolving Startup Problems,
page 9-1.
Table 2-2 Cisco Unified IP Phone Startup Process (continued)
No. Process Description Related Topics