Data Sheet

© 2019 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 6 of 9
Features
Specifications
●
Romanian (Romania)
●
Russian (Russian Federation)
●
Spanish (Columbia)
●
Spanish (Spain)
●
Slovak (Slovakia)
●
Swedish (Sweden)
●
Serbian (Republic of Serbia)
●
Serbian (Republic of Montenegro)
●
Slovenian (Slovenia)
●
Thai (Thailand)
●
Turkish (Turkey)
Multiple ring tones
●
The phone supports user-adjustable ring tones.
Directories
●
The phone identifies incoming messages and categorizes them for users on the screen. This makes it fast and
easy to return calls using direct dial-back capability. The corporate directory integrates with the Lightweight
Directory Access Protocol (LDAP) standard directory.
Quality-of-service (QoS)
options
●
The phone supports CDP and 802.1Q/p standards, and can be configured with an 801.1Q VLAN header
containing the VLAN ID overrides configured by the Admin VLAN ID.
Security
●
Certificates
●
Image authentication
●
Device authentication
●
File authentication
●
Signaling authentication
●
Media encryption using Secure Real-Time Transfer Protocol (SRTP) using AES-128
●
Signaling encryption using Transport Layer Security (TLS) Protocol using AES-128 or AES-256
●
Encrypted configuration files
●
802.1X authentication
●
Cryptography
Configuration options
●
The user can configure IP address assignment statically or through the DHCP client.
Physical dimensions
(H×W×D)
●
IP Phone 7811: 207 x 195 x 33mm (exclude foot stand)
●
IP Phone 7821: 207 x 206 x 28mm (exclude foot stand)
●
IP Phone 7841: 207 x 206 x 28mm (exclude foot stand)
●
IP Phone 7861: 207 x 265 x 28mm (exclude foot stand)
Weight
●
IP Phone 7811: 806g
●
IP Phone 7821: 867g
●
IP Phone 7841: 868g
●
IP Phone 7861: 1053g
Display
●
IP Phone 7821, 7841, 7861: 3.5” 396×162 pixels
●
IP Phone 7811: 3.28” 384×106 pixels
Ethernet switch
●
The phone has a 10/100BASE-T (The Cisco
®
IP Phone 7811, 7821 & 7861) or a10/100/1000BASE-T
(The Cisco
®
IP Phone 7841) Ethernet connection through two RJ-45 ports, one for the LAN connection and the
other for a downstream Ethernet device connection like a PC.
Phone casing composition
●
Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic.
Power requirements
●
The phone is an interoperable IEEE 802.3af PoE (Class 1 device); 48 VDC is required; it can be supplied
locally at the desktop using an optional AC-to-DC power supply (CP-PWR-CUBE-3=). Use of the power supply
also requires the use of one of the corresponding AC country cords.
Operational temperature
●
32 to 104°F (0 to 40°C)
Nonoperational
temperature shock
●
14 to 140°F (-10 to 60°C)
Humidity
●
Operating 10% to 90%, non-condensing
●
Non-operating 10% to 95%, non-condensing
Cosmetic
●
Cisco cosmetic class A