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Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
OL-20798-01
Chapter 1      An Overview of the Cisco Unified IP Phone
  Overview of Configuring and Installing Cisco Unified IP Phones
5. If you are configuring the network settings on the phone for an IPv6 network, you 
can set up an IP address for the phone by either using DHCP or manually entering an 
IP address. 
Using DHCP—To enable DHCP and allow the DHCP server to automatically assign 
an IP address to the Cisco Unified IP Phone and direct the phone to a TFTP server, 
choose Settings > Network Configuration> IPv6 Configuration and:
 • To enable DHCPv6,set DHCPv6 Enabled to Yes. DHCPv6 is enabled by default.
 • To use an alternate TFTP server, set IPv6 Alternate TFTP Server to Yes, and 
enter the IP address for IPv6 TFTP Server 1.
Note Consult with the network administrator if you need to assign an alternative 
TFTP server instead of using the TFTP server assigned by DHCP. 
Without DHCP—You must configure the IP address, subnet mask, TFTP server, and 
default router locally on the phone; choose Settings > Network Configuration> 
IPv6 Configuration:
To disable DHCP and manually set an IP address:
a. To disable DHCPv6, set DHCPv6 Enabled to No.
b. Enter the static IP address for phone.
c. Enter the IPv6 prefix length.
d. Set IPv6 Alternate TFTP Server to Yes, and enter IP address for IPv6 TFTP 
Server 1.
You must also enter the domain name where the phone resides by Choosing Settings 
> Network Configuration.
Note The Cisco Unified IP Phone supports having both IPv4 and an IPv6 address 
concurrently. You can configure Cisco Unified CM to support IPv4 addresses 
only, IPv6 addresses only, or support both IPv4/IPv6 addresses.
See Configuring Startup Network 
Settings, page 3-9.
See Network Configuration 
Menu, page 4-6.
6. Set up security on the phone.
Provides protection against data tampering threats and identity theft of phones.
See Configuring Security on the 
Cisco Unified IP Phone, page 3-9.
7.  Make calls with the Cisco Unified IP Phone.
Verifies that the phone and features work correctly.
See the Cisco Unified IP Phone 
7931G Guide for Cisco Unified 
Communications Manager 7.0 
or later.
8. Provide information to end users about how to use their phones and how to configure 
their phone options.
Ensures that users have adequate information to successfully use their Cisco 
Unified IP Phones.
See Appendix C, “Providing 
Information to Users Via a 
Website.”
Table 1-8 Checklist for Installing the Cisco Unified IP Phones 7931G (continued)
Task and Purpose For More Information