Cisco 7821 Administration Guide

DescriptionParameter
Indicates the type of internet connection for the phone:
• DHCP
• Static IP
Connection Type
Displays the current IP address assigned to the IP
phone.
Current IP
Displays the network mask assigned to the phone.Current Netmask
Displays the default router assigned to the phone.Current Gateway
Displays the primary DNS server assigned to the
phone.
Primary DNS
Displays the secondary DNS server assigned to the
phone.
Secondary DNS
IPv6 Information
DescriptionParameter
Indicates that the connection is established.IP Status
Indicates the type of internet connection for the phone:
• Static IP
• DHCP
Connection Type
Displays the current IPv6 address assigned to the IP
phone.
Current IP
Identifies number of bits of a global unicast IPv6
address that are part of`the network. For example, if
the IPv6 address is 2001:0DB8:0000:000b::/64, the
number 64 identifies that the first 64 bits are part of
the network.
Prefix Length
Displays the default router assigned to the phone.Current Gateway
Displays the primary DNS server assigned to the
phone.
Primary DNS
Displays the secondary DNS server assigned to the
phone.
Secondary DNS
Reboot History
For information about reboot history, see Reboot Reasons, on page 325.
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
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Cisco IP Phone Troubleshooting
IPv6 Information

Cisco 7821 Specifications

General

Resolution	396 x 162 pixels
Lines	2
Speakerphone	Yes
Display	3.5-inch (89 mm) monochrome display
Ethernet Ports	2 x 10/100 Ethernet ports
Power	IEEE PoE Class 1
Headset Port	Yes
Protocols	SIP
Audio Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg (1.98 lb)