Cisco 6821 Administration Guide

DescriptionParameter
Displays the primary NTP server assigned to the
phone.
Primary NTP Server
Displays the secondary NTP server assigned to the
phone.
Secondary NTP Server
IPv4 Information
DescriptionParameter
Indicates that the connection is established.IP Status
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
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Phone Troubleshooting
IPv4 Information

Cisco 6821 Specifications

General

Resolution	320 x 240 pixels
Speakerphone	Yes
Headset Port	Yes
Protocols	SIP
USB Port	No
Wireless	No
Bluetooth	No
Video Support	No
Conference Capabilities	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale
Ethernet	10/100 Ethernet
Line Keys	2
PoE	IEEE 802.3af Power over Ethernet (PoE)
Codecs	G.711, G.722, G.729, iLBC
Weight	2.0 lb (0.91 kg)