Cisco 8961 Administration Manual page 57
Administration guide for cisco unified communications manager 8.6 (sip)
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Chapter 2
Preparing to Install the Cisco Unified IP Phone on Your Network
Table 2-3
Cisco Unified IP Phone Startup Process (continued)
Task
Purpose
Configure the VLAN.
5.
If the Cisco Unified IP Phone is connected to a Cisco Catalyst switch,
the switch next informs the phone of the voice VLAN defined on the
switch. The phone needs to know the VLAN membership before it can
proceed with the Dynamic Host Configuration Protocol (DHCP)
request for an IP address.
Obtain an IP address.
6.
If the Cisco Unified IP Phone is using DHCP to obtain an IP address,
the phone queries the DHCP server to obtain one. If you are not using
DHCP in your network, you must assign static IP addresses to each
phone locally.
Requesting the CTL file.
7.
The TFTP server stores the CTL file. This file contains the certificates
necessary for establishing a secure connection between the phone and
Cisco Unified CM.
Requesting the ITL file.
8.
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 supported on the Cisco Unified CM 8.5 and later.
Access a TFTP server.
9.
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
Note
the one assigned by DHCP.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
Understanding the Phone Startup Process
Related Topics
Ethernet Setup Menu, page
•
Resolving Startup Problems,
•
page
12-1.
Ethernet Setup Menu, page
•
Resolving Startup Problems,
•
page
12-1.
See Cisco Unified Communications
Manager Security Guide, Configuring
the Cisco CTL Client.
See the
"Preparing to Install the Cisco
Unified IP Phone on Your Network"
chapter.
See the
"Troubleshooting and
Maintenance"
chapter.
Ethernet Setup Menu, page
•
Resolving Startup Problems,
•
page
12-1.
7-4.
7-4.
7-4.
2-9
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Table of Contents
Troubleshooting
