Cisco 7841 Administration Guide

CONTENTS
New and Changed Information 1
CHAPTER 1
New and Changed Information for Firmware Release 11.2(3)SR1 1
New and Changed for Firmware Release 11.2(3) 1
New and Changed for Firmware Release 11.2(1) 3
New and Changed for Firmware Release 11.1(2) 4
New and Changed for Firmware Release 11.1(1) 5
New and Changed Features for Firmware Release 11.0(1) 5
New and Changed Features for Firmware Release 11(0) 6
New Information for Firmware Release 10.4(1) SR1 8
New Information for Firmware Release 10.4(1) 8
About the Cisco IP Phone 9
PART I
Technical Details 11
CHAPTER 2
Overview of the Cisco IP Phone 11
Physical and Operating Environment Specifications 11
Cable Specifications 12
Network and Computer Port Pinouts 13
Network Port Connector 13
Computer Port Connector 14
Phone Power Requirements 14
Power Outage 15
Power Reduction 16
Power Negotiation Over LLDP 16
Network Protocols 16
VLAN Interaction 19
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
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Cisco 7841 Specifications

General

Ethernet Switch	Yes
Lines	4
Headset Port	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale display
Audio	Wideband audio
PoE	IEEE 802.3af
Speakerphone	Full-duplex
Ethernet Ports	2 x 10/100/1000
Headset Jack	RJ9
Protocols	SIP
Codec Support	G.711, G.722, G.729, iLBC
Mounting	Desk or wall
Weight	1 kg