Cisco 8841 Administration Guide

Set the Optional Network Servers 52
VLAN Settings 53
Cisco Discovery Protocol 53
LLDP-MED 53
Chassis ID TLV 55
Port ID TLV 55
Time to Live TLV 55
End of LLDPDU TLV 55
Port Description TLV 55
System Name TLV 55
System Capabilities TLV 56
Management Address TLV 56
System Description TLV 56
IEEE 802.3 MAC/PHY Configuration/Status TLV 56
LLDP-MED Capabilities TLV 57
Network Policy TLV 57
LLDP-MED Extended Power-Via-MDI TLV 58
LLDP-MED Inventory Management TLV 58
Final Network Policy Resolution and QoS 58
Special VLANs 58
Default QoS for SIP Mode 58
QoS Resolution for CDP 58
QoS Resolution for LLDP-MED 59
Coexistence with CDP 59
LLDP-MED and Multiple Network Devices 59
LLDP-MED and IEEE 802.X 59
Configure VLAN Settings 59
Set Up DHCP VLAN Option from Phone Web Page 60
SIP and NAT Configuration 61
SIP and the Cisco IP Phone 61
SIP Over TCP 61
SIP Proxy Redundancy 61
Dual Registration 62
Failover and Recovery Registration 62
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
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Contents

Cisco 8841 Specifications

General

Resolution	800 x 480 pixels
Audio	Wideband audio
Bluetooth	No
Ethernet	10/100/1000 Mbps
PoE	IEEE 802.3af compliant
Connectivity	Ethernet
Buttons	4 programmable line keys
Speakerphone	Full-duplex speakerphone
Headset Jack	Yes, RJ9
Codecs	G.711, G.722, G.729a, iLBC
Power Options	PoE
Network Interfaces	Dual Gigabit Ethernet ports
Security	Secure boot, 802.1X authentication, secure credential storage
Dimensions	40 mm
Weight	2.5 lb (1.1 kg)