Cisco 8800 Series, Manual

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Configure NTP Server
You can configure NTP servers with IPv4 and IPv6. You can also configure NTP server with DHCPv4 option
42 or DHCPv6 option 56. Configuring NTP with Primary NTP Server and Secondary NTP server parameters
has higher priority over configuring NTP with DHCPv4 option 42 or DHCPv6 option 56.
Before you begin
Access the phone administration web page. See Access the Phone Web Interface, on page 104 .
Procedure
Step 1
Select Voice > Systems .
Step 2 In the Optional Network Configuration section, set the IPv4 or IPv6 address as described in the NTP Server
Parameters, on page 353 table.
Step 3 Click Submit All Changes .
NTP Server Parameters
The following table defines the function and usage of NTP server parameters in the Optional Network
Configuration section under the System tab in the phone web interface. It also defines the syntax of the string
that is added in the phone configuration file with XML(cfg.xml) code to configure a parameter.
Table 72: NTP Server Parameters
Description Parameter
IP address or name of the primary NTP server used
to synchronize its time.
Perform one of the following:
• In the phone configuration file with
XML(cfg.xml), enter a string in this format:
<Primary_NTP_Server ua="rw"/>
• In the phone web page, enter the IP address of
the priamry NTP server.
Default: Blank
Primary NTP Server
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
353
Cisco IP Phone Installation
Configure NTP Server