Cisco 8831NR Administration Manual page 49

Cisco Unified IP Phones and Telephony Networks
Note You can also assign an alternative TFTP server to use instead of the one that DHCP assigns.
6. Request the configuration file. The TFTP server has configuration files, which define parameters for
connecting to Cisco Unified Communications Manager and other information for the conference phone.
For more information, see
7. Contact Cisco Unified Communications Manager. The configuration file defines how the conference
phone communicates with Cisco Unified Communications Manager and provides a conference phone
with its load ID. After obtaining the file from the TFTP server, the conference phone attempts to make a
connection to the highest priority Cisco Unified Communications Manager on the list. The conference
phone makes a non-secure TCP connection.
If the conference phone was manually added to the database, Cisco Unified Communications Manager
identifies the conference phone. If the conference phone was not manually added to the database and
auto-registration is enabled in Cisco Unified Communications Manager, the conference phone attempts
to auto-register itself in Cisco Unified Communications Manager.
Auto-registration is disabled when security is enabled on Cisco Unified Communications Manager. In
this case, the conference phone must be manually added to the Cisco Unified Communications Manager.
Related Topics
Cisco Unified Communications Manager IP Phone Addition
Methods
Before installing the conference phone, you must choose a method for adding conference phones to Cisco
Unified Communications Manager database. Be aware that each phone type requires a fixed number of device
license units and the number of unit licenses that are available on the server may impact phone registration.
For more information about licensing, see "Licenses for Phones" section in the Cisco Unified Communications
Manager System Guide.
The following table provides an overview of these methods for adding conference phones to Cisco Unified
Communications Manager.
Table 15: Methods for Adding IP Phones to Cisco Unified Communications Manager Database
Method
Autoregistration
Phone Configuration Files, on page
Startup Problems, on page 121
Network Setup Menu, on page 62
Requires MAC Address?
No
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
Cisco Unified Communications Manager IP Phone Addition Methods
37.
Notes
Results in the automatic assignment of a directory
number to the conference phone, and provides no
control over directory number assignment to
conference phones.
Not available when security or encryption is enabled.
In this case, the conference phone must be manually
added to the Cisco Unified Communications Manager
database.
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