The Cisco® Unified IP Conference Phone 8831 enhances people-centric communications, combining superior high-definition (HD) audio performance and 360-degree coverage for all sizes of conference rooms and executive offices. It provides an audiophile sound experience with a full-duplex two-way wideband (G.722) audio hands-free speaker.
The IP Conference Phone 8831 is a simple, scalable solution that meets the challenges of the most diverse rooms. It provides flexible deployment options and expansion by using extension microphones that can be wired or wireless (Digital Equipment Cordless Telephone [DECT]) with a daisy-chain configuration of two units.
The IP Conference Phone 8831 has an industrial design with enhanced ergonomics that puts the user first. It offers a detached control panel so that the display may be easily viewed without having to move the entire unit. It also provides easy view of device mute status from all sides.
Supported on Cisco Unified Communications Manager and Business Edition systems, the IP Conference Phone 8831 delivers a more productive, acoustically pleasing, and secure communications experience across sites and participants.
Features and Benefits
The Cisco Unified IP Conference Phone 8831 offers many improvements over the existing Cisco Unified IP Conference Station 7937G. New features include:
• Superior wideband acoustics with the first two-element speaker in a conference phone; this feature allows the phone to capture the full voice spectrum without having to compromise with a single-element speaker
• Expanded room coverage with support for daisy chaining two units
• Support for DECT wireless extension microphones
• Session Initiation Protocol (SIP) signaling
• Device authentication and signaling encryption using Transport Layer Security (TLS) with Advanced Encryption Standard 128 (AES-128)
• Media encryption using Secure Real-Time Transport Protocol (SRTP) with AES-128
Table 1 lists the features and benefits of the Cisco Unified IP Conference Phone 8831.
Table 1. Features and Benefits
Superior wideband acoustics
• 160 Hz to 20 kHz, +/-3 dB.
• The latest in wideband codecs for maximum voice bandwidth.
• Enhanced speech quality and speaker recognition.
92-dB SPL peak output*
Expanded room coverage
• 160-degrees conical pattern provides even coverage of listening area.
• Four Hemi-Cardioid microphones are perfectly spaced so that they combine to provide a 180-degree pick-up pattern around the device. Speech is captured at the same level at all points around the Cisco Unified IP Conference Phone 8831.
These microphones extend the operational range of the Cisco Unified IP Conference Phone 8831 with even coverage around the periphery of the device with 7 feet of additional reach.
DECT wireless microphones for the Cisco Unified IP Conference Phone 8831 provide additional coverage with the added flexibility of 300 feet of range.
Wired control panel
The panel allows easy control of the unit and viewing of the display without having to move the entire unit.
IEEE 802.3af line power
Local power supply is not required.
Cisco Power Cube 3
This power cube uses a standard Cisco Unified IP Phone Power Supply for non-Power over Ethernet (PoE) deployments. It is required for daisy chaining two units together.
Cisco Unified Communications Manager
The phone supports Cisco Unified Communications Manager (Cisco UCM) Releases 7.1(5), 8.5(1), 8.6(2), 9.0, and later.
Cisco Business Edition 3000
The phone is supported on the Cisco Business Edition 3000 Releases 8.6(1) and later.
Cisco Business Edition 6000
The phone is supported on the Cisco Business Edition 6000 Releases 8.6(5) and later.
* Peak output measured in half-space environment.
The Cisco Unified IP Conference Phone 8831 requires an Enhanced User Connect License (UCL) on Cisco UCM Versions 9.0 and later. For supported Cisco UCM versions before 9.0, a public space license is required.
Table 2 lists the features and specifications of the Cisco Unified IP Conference Phone 8831.
Table 2. Features and Specifications of Cisco Unified IP Conference Phone 8831
Signaling protocol support
Session Initiation Protocol (SIP)
G.711, G.729(a and ab), G.722, and Internet Low Bitrate Codec (iLBC)
Calling feature support
• + Dialing (E.164)
• Adjustable ringing and volume levels
• Adjustable display brightness
• Application launch pad
• Auto-detection of headset
• Call forward
• Call history lists
• Call timer
• Call waiting
• Caller ID
• Corporate directory
• Direct transfer
• Fast-dial service
• Immediate divert
• Message-waiting indicator
• Music on hold
• Network profiles (automatic)
• On- and off-network distinctive ringing
• Personal directory
• Predialing before sending
• Ring tone per line appearance
• Shared line
• Survivable Remote Site Telephony (SRST)
• Time and date display
The Cisco Unified IP Conference Phone 8831 identifies incoming messages and categorizes them for users on the screen. This feature allows you to quickly and effectively return calls using direct dial-back capability. The corporate directory integrates with the Lightweight Directory Access Protocol Version 3 (LDAPv3) standard directory.
The Settings feature key allows you to adjust display contrast, select background images (if available), and select from a large number of unique ringer sounds through the User Preference menu. Network configuration preferences also can be set up (usually by the system administrator). Configuration can be either automatically or manually set up for Dynamic Host Control Protocol (DHCP), Trivial File Transfer Protocol (TFTP), Cisco Unified Communications Manager, and backup Cisco Unified Communications Manager instances.
The online Help feature gives you information about the phone keys, buttons, and features. The pixel display allows for more flexible feature navigation and significantly expands the information viewed when using features such as Services, Information, Messages, and Directory. For example, the Directory button can show local and server-based directory information.
Hold, Mute, and Redial keys
The Mute key is a fixed key. When it is active, the LED flashes on the Cisco Unified IP Conference Phone 8831 as well as on the optional wired and wireless microphone kits. Hold and Redial are provided as soft keys associated with the screen, and are always at the same position for easy access.
The conference station has a large high-resolution, graphical 3.5-inch backlit display (396 x 162 pixels).
The Cisco Unified IP Conference Phone 8831 offers full-duplex high-quality wideband speakerphone technology. Included are Automatic Gain Control, comfort-noise generation, silence suppression and voice activity detection, Echo Suppression, and dynamic noise reduction, which reduces noise by up to 9 dB from constant noise sources such as fans or heating, ventilation, and air conditioning (HVAC) systems.
A two-way high-fidelity loud speaker system provides superior speech clarity versus traditional conferencing systems.
The convenient Volume Control buttons on Cisco Unified IP Conference Phone 8831 provide for easy, decibel-level adjustments for the speakerphone and ringer.
Quality-of-service (QoS) options
The Cisco Unified IP Conference Phone supports DHCP and 802.1Q/p standards. The conference station can also be configured with an 801.1Q VLAN header containing the VLAN ID overrides configured by the Admin VLAN ID.
Multiple ring tones
User-adjustable ring tones are available.
The Cisco Unified IP Conference Phone 8831 supports device authentication through 802.1.x supplicant (TLS) and SRTP.
Arabic (Arabic Area)
Chinese (Hong Kong)
Czech (Czech Republic)
English (United Kingdom)
Korean (Korea Republic)
Russian (Russian Federation)
Serbian (Republic of Serbia)
Serbian (Republic of Montenegro)
You can configure IP address assignment statically or through the DHCP client.
Table 3 gives specifications of the Cisco Unified IP Conference Phone 8831, Table 4 provides temperature ratings, and Table 5 lists certifications for the conference station.
Table 3. System Specifications
Dimensions (H x W x D)
Base: 10.38 x 10.38 x 2.0 in. (15.05 x 26.35 x 5.08 cm)
Control panel: 5.75 x 5.0 x 1.0 in. (14.61 x 12.7 x 2.54 cm)
Microphones: 3.5 x 2.5 x 0.5 in. (8.89 x 6.35 x 1.27 cm)
Charger tray: 6.5 x 4.5 x 0.75 in. (16.51 x 11.43 x 1.90 cm)
The Cisco Unified IP Conference Phone 8831 is an interoperable IEEE 802.3af PoE (Class 3 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 listed in Table 7 later in this document.
Use of a power supply (CP-PWR-CUBE-3=) is required when using the Cisco Unified IP Conference Phone 8831 in a daisy-chain configuration.
Table 4. Temperature
32 to 104°F (0 ~ 40°C)
10 to 95% (noncondensing)
14 to 140°F (-10 to 60°C)
Note that products with the CE marking in Table 5 indicate compliance with the 2006/95/EC and 2004/108/EC directives, which include the safety and EMC standards listed.
Table 5. Regulatory Standards Compliance: Safety and EMC
Products should comply with CE Marking per directives 2004/108/EC and 2006/95/EC
UL 60950-1 Second Edition Amd 1
CAN/CSA-C22.2 No. 60950-1 Second Edition Amd 1
EN 60950-1 Second Edition A11, A1, A12
IEC 60950-1 Second Edition Amd 1
AS/NZS 60950-1: 2011
FCC Part 15 Subpart B Class B
AS/NZS 3548 CISPR22 Class B
EN55022 Class B
ICES-003 Class B
VCCI Class B
KN22 Class B
CNS13438 Class B
EMC: Radio DECT
FCC Part 15 Subpart D
EN 301 406
AUS AS/ACIF S004 - Hands-free Send Frequency Response
Tables 6, 7 and 8 give ordering information for the phone and power cord, respectively.
Table 6. Ordering Information
Cisco Unified IP Conference Phone 8831 base unit and control panel
Cisco Unified IP Conference Phone 8831 base unit and control panel - Japan DECT Frequency
*Optional Daisy Chain Kit extension for the Cisco Unified IP Conference Phone 8831.
• Cisco Unified IP Conference Phone 8831 Base Unit
• Daisy Chain Cable (25ft)
*Optional Daisy Chain Kit extension for the Cisco Unified IP Conference Phone 8831- Japan DECT Frequency.
• Cisco Unified IP Conference Phone 8831 Base Unit
• Daisy Chain Cable (25ft)
*Optional Wireless Microphone Kit for Cisco Unified IP Conference Phone 8831
• 2 DECT Wireless Microphones
• Charging Station for Microphones
• Power Supply
*Optional Wired Microphone Kit for Cisco Unified IP Conference Phone 8831
• 2 Wired microphones
*Optional Daisy Chain Cable for the Cisco Unified IP Conference Phone 8831. For Daisy Chaining 2 Cisco Unified IP Conference Phone 8831's together (25ft)
*Not required if purchasing the Daisy Chain Kit (CP-8831-DC-S-K9)
Cisco Power Cube 3
Table 7. Power Cords
Cisco Unified IP Phones and Conference Stations are covered by a Cisco standard 1-year replacement warranty.
Cisco Unified Communications Services
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