For more information, see
Configuration Menus, on page 35
and
Startup Problems, on page 79
.
Step 4
Access a TFTP Server. In addition to assigning an IP address, the DHCP server directs the
Cisco Unified IP Phone to a TFTP Server. If the phone has a statically defined IP address, you must configure
the TFTP server locally on the phone; the phone then contacts the TFTP server directly.
You can also assign an alternative TFTP server to use instead of the one assigned by
DHCP.
Note
For more information, see
Configuration Menus, on page 35
and
Startup Problems, on page 79
.
Step 5
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 phone.
For more information, see
Cisco Unified Communications Manager Phone Addition Methods, on page 26
and
Startup Problems, on page 79
.
Step 6
Load the Stored Phone Image. The Cisco Unified IP Phone has nonvolatile Flash memory in which it stores
firmware images and user-defined preferences. At startup, the phone runs a bootstrap loader that loads a phone
image stored in Flash memory. Using this image, the phone initializes its software and hardware.
For more information, see
Startup Problems, on page 79
.
Step 7
Contact Cisco Unified Communications Manager. 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 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.
For more information, see
Startup Problems, on page 79
.
Cisco Unified Communications Manager Phone Addition
Methods
Before installing the Cisco Unified IP phone, you must choose a method for adding phones to the
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 on licensing, see the
“
Licenses for Phones
”
section in the
Cisco Unified
Communications Manager System Guide
.
The following table provides an overview of these methods for adding phones to the Cisco Unified
Communications Manager database.
Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
26
Cisco Unified IP Phone and Your Network
Cisco Unified Communications Manager Phone Addition Methods
