Introduction

Affordable, Easy Voice Collaboration

Get simple, highly secure, and highly cost-effective voice communications for small to large businesses with the Cisco IP Phone 7841. It is an ideal endpoint for moderately active voice communications needs of workers, administrative staff, and managers. Cisco on-premises, hosted, Webex Calling, and third-party call control offer flexible deployment options.

Easy-to-Use Experiences

- Four line and programmable feature keys enable quick access to telephony features and staff
- High-resolution, graphical grayscale display makes viewing easier
- Dedicated fixed keys ease communications for increased efficiency
- Built-in speakerphone adds freedom with hands-free communications
- Wideband for enhanced audio clarity is supported with handset, speaker, or a headset

Simple, Cost-Effective Administration

Key features which simplify and reduce costs of administration include:

- Flexible deployment options include Cisco on-premises, hosted, and Webex Calling.
- Cisco Expressway supports remote worker single sign-on access without need for a VPN client
- Power over Ethernet (PoE) Class 1 and Cisco EnergyWise helps reduce energy costs
- Integrated IEEE 10/100/1000 switch lowers installation costs and footprint at the desk
- Cisco Webex Phone OS consolidates administration with common software to both the IP Phone 7800 Series and IP Phone 8800 Series.

Design

Product type

IP Phone

Handset type

Wired handset

Product colour

Charcoal

Case material

Polycarbonate

Mounting

Desk/Wall

Phone features

Lines quantity

4 lines

Answering machine

Yes

Call waiting

Yes

Speed dialling

Yes

Intercom

Yes

Call hold

Yes

Call forwarding

Yes

Conference call

Yes

Redialing

Yes

Do not disturb function

Yes

Caller ID

Yes

Call park

Yes

Call pick up

Yes

Call return

Yes

Call transfer

Yes

Call history

Yes

Management features

Volume control

Digital

Display

Display diagonal

8.89 cm (3.5")

Display resolution

396 x 162 pixels

Backlight display

Yes

Backlight colour

White

Camera

Front camera

No

Audio

Speakerphone

Yes

Microphone mute

Yes

Voice codecs

G.711a, G.711u, G.722, G.729A, iLBC

Network

Ethernet LAN

Yes

Ethernet LAN interface type

Gigabit Ethernet

Ethernet LAN data rates

10,100,1000 Mbit/s

Wi-Fi

No

Bluetooth

No

Supported network protocols

SIP, SRTP, TLS

Quality of Service (QoS) support

Yes

DHCP client

Yes

Security algorithms

128-bit AES, 256-bit AES, 802.1x RADIUS

Networking standards

IEEE 802.3, IEEE 802.3af

Ports & interfaces

Ethernet LAN (RJ-45) ports

2

RJ-9 ports quantity

1

DC-in jack

Yes

Certificates

Safety

UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, EN 60950 Second Edition (incl. A11 & A12), IEC 60950 Second Edition (incl. A11 & A12), AS/NZS 60950, GB4943

Compliance industry standards

TIA 810, TIA 920 IEEE 802.3 Ethernet, IEEE 802.3af, 802.3at

Certification

EMC - Emissions ? 47CFR Part 15 (CFR 47) Class B ? AS/NZS CISPR22 Class B ? CISPR22: 2005 w/Amendment 1: 2005 Class B ? EN55022: 2006 w/Amendment 1: 2007 Class B ? ICES003 Class B ? VCCI Class B ? EN61000-3-2 ? EN61000-3-3 ? KN22 Class B ? EMC - Immunity ? EN55024 ? CISPR24 ? EN60601-1-2 ? KN24 ? Armadillo Light ? Telecom ? FCC Part 68 HAC ? CS-03-HAC ? AS/ACIF S004 ? AS/ACIF S040 ? NZ PTC 220

Power

Power over Ethernet (PoE)

Yes

Operational conditions

Operating temperature (T-T)

0 - 40 °C

Operating relative humidity (H-H)

10 - 90%

Weight & dimensions

Width

207 mm

Depth

206 mm

Height

28 mm

Weight

868 g