Cisco CP-8851NR-K9 IP Phone
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Model: CP-8851NR-K9
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Description:
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Price: USDLast Update:
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The Cisco IP Phone 8851NR is a professional-grade collaboration endpoint designed to provide reliable, secure, and high-quality voice communications. This model is specifically engineered for environments that require robust VoIP capabilities without the use of integrated Bluetooth radio. By focusing on a secure and scalable infrastructure, it allows businesses to leverage Cisco’s comprehensive unified communications platforms, whether they are hosted or on-premises.
Beyond its core communication functions, the 8851NR emphasizes user productivity and environmental responsibility. It features an ergonomic design that is both intuitive and efficient, ensuring that users can manage their daily tasks with ease. Furthermore, Cisco has integrated circular design principles into this device, utilizing post-consumer recycled plastics to reduce environmental impact and support sustainable business practices.
Product overview
The Cisco IP Phone 8851NR is equipped with a 5-inch, high-resolution widescreen color display that provides a clear interface for navigating menus and accessing calling features. It includes five programmable line keys that can be customized for multiple directory numbers or specific calling features like speed dial. To further enhance workflow, the phone supports a multicall-per-line feature, allowing users to handle several calls simultaneously.
For connectivity and expansion, the device includes a built-in Gigabit Ethernet switch for direct PC connections and a USB port that allows users to charge their smartphones directly at their desks. While the 8851NR does not include Bluetooth, it remains highly flexible, offering support for up to two optional Cisco IP Phone 8800 Key Expansion Modules (KEMs). This allows users to scale their device to include up to 66 additional line or feature keys, making it a versatile solution for power users and busy office environments.
Features and benefits
- High-Fidelity Audio: Supports wideband audio for crystal-clear voice quality, with a full-duplex speakerphone for hands-free operation.
- Enhanced Security: Provides encrypted voice communications and supports secure boot, device authentication, and SRTP for media encryption.
- Programmable Interface: Features five line keys and fixed-function keys for one-touch access to essential applications, messaging, and call handling (hold, transfer, conference).
- Connectivity Options: Includes a 2-port Gigabit Ethernet switch, a dedicated RJ-9 headset port, and a USB port for charging or connecting wired headsets.
- Sustainability: Built using post-consumer recycled plastic and supports Cisco EnergyWise technology to improve energy efficiency.
- Scalability: Compatible with up to two Key Expansion Modules (KEMs) to increase the number of available line and feature keys.
- Accessibility: Handset is Hearing Aid-Compatible (HAC) and meets ADA loudness requirements; the interface supports multiple languages and right-to-left text.
- Flexible Mounting: Includes a two-position foot stand for optimal viewing angles and supports optional wall-mount kits.
- Power Efficiency: Supports IEEE Power over Ethernet (PoE) class 3 or 4, depending on the hardware version, with an optional Power Cube 4 available for non-PoE environments.
The Cisco IP Phone 8851NR is a business-class collaboration endpoint that combines high-fidelity, reliable, secure, and scalable voice over IP communications without Bluetooth radio.
With the Cisco IP Phone 8851NR, you can increase personal productivity through an engaging user experience that is both powerful and easy to use. The IP Phone 8851NR combines an attractive, new ergonomic design with wideband audio for crystal-clear voice communications, always-on reliability, encrypted voice communications to enhance security, and access to a comprehensive suite of unified communication features from Cisco on-premises and hosted infrastructure platforms. The 8851NR (non-radio) model is for customers who still wish to have HD audio with flexibility to add Key Expansion Module (KEM) support but without integrated Bluetooth radio.
The IP Phone 8851NR also comes standard with a USB port so you can charge your smartphone when at your desk and stay connected when away from your desk.
The IP Phone 8851NR offers five programmable line keys. You can configure keys to support either multiple directory numbers or calling features such as speed dial. You can also boost productivity by handling multiple calls for each directory number using the multicall-per-line feature. Fixed-function keys give you one-touch access to applications, messaging, and directory, as well as often-used calling features such as hold/resume, transfer, and conference. A five-way navigation cluster helps you transition through menus more easily. Backlit acoustic keys provide flexibility for audio path selection and switching.
Additionally, Cisco has adopted circular design principles in our products by pioneering the use of post-consumer recycled plastic. The 8851NR is one of the models that now reduces the use of natural resources while closing the loop with its own electronic waste. Learn more about what this means at Cisco’s Circular Economy website.
Other key features of the IP Phone 8851NR:
●It offers a 5-inch, high-resolution (800 x 480), widescreen VGA backlit color display. Localized language support, including right-to-left on-screen text, meets the needs of global users.
●The phone supports a built-in Gigabit Ethernet switch for your PC connection.
●Support for Cisco EnergyWise technology makes the IP Phone 8851NR more energy-efficient and ecofriendly; the phone is qualified by the Energy Star organization.
●An optional wall-mount kit is orderable as a spare part for customers seeking this capability.
●Up to two optional IP Phone 8800 Key Expansion Modules with up to 56 additional line/feature keys are supported.
Features and benefits
Table 1 lists features and benefits of the IP Phone 8851NR.
Table 1.Features and benefits
| Features |
Benefits |
| Hardware features |
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| Ergonomic design |
●The phone offers an easy-to-use interface and provides a traditional telephony-like user experience.
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| Graphical display |
●The 800 × 480, 24-bit color, 5-inch WVGA display provides scrollable access to calling features and text-based XML applications.
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| Handset |
●The handset is a standard wideband-capable audio handset (connects through an RJ-9 port).
●The standard coiled cord has a custom end for concealed cable routing beneath the phone (cord length is approximately 21 inches [55 cm] coiled and up to 72 inches (183 cm) extended).
●The handset is Hearing Aid-Compatible (HAC) and meets Federal Communications Commission (FCC) loudness requirements for the Americans with Disabilities Act (ADA). You can achieve Section 508 loudness requirements by using industry-standard inline handset amplifiers such as Walker Equipment W-10 or CE-100 amplifiers. The dial pad is also ADA-compliant.
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| Speaker phone |
●A full-duplex speakerphone gives you flexibility in placing and receiving calls hands free. For added security, the audible Dual Tone Multifrequency (DTMF) tones are masked when the speakerphone mode is used.
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| Analog headset |
●The analog headset jack is a standard wideband-capable RJ-9 audio port.
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| AUX port |
●You can use an auxiliary port to support electronic hookswitch control with a third-party headset connected to it.
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| USB |
●A side USB port enhances the usability of call handling by enabling wired or wireless headsets, as well as provides up to 500-mA power output at 5V or 2.5W for smartphone charging.
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| Ethernet switch |
●An internal 2-port Cisco Ethernet switch allows for a direct connection to a 10/100/1000BASE-T Ethernet network (IEEE 802.3i/802.3u/802.3ab) through an RJ-45 interface with single LAN connectivity for both the phone and a co-located PC.
●The system administrator can designate separate VLANs (IEEE 802.1Q) for the PC and phone, providing improved security and reliability of voice and data traffic.
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| Keys |
●The phone has the following keys:
◦Line keys ◦Soft keys ◦Back and release keys ◦Four-way navigation and select keys ◦Hold/Resume, Transfer, and Conference keys ◦Messaging, Application, and Directory keys ◦Standard keypad ◦Volume-control toggle key ◦Speakerphone, headset, and mute keys |
| Backlit indicator |
●The phone supports backlit indicators for the audio path keys (handset, headset, and speakerphone), select key, line keys, and message waiting.
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| Replaceable bezel |
●The phone includes a black bezel; an optional silver bezel is also orderable separately.
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| Dual-position foot stand |
●The display is easy-to-view and the buttons and keys are easy-to-use. The two-position foot stand supports viewing angles of 35 and 50 degrees; you can remove the foot stand for wall mounting, with mounting holes located on the base of the phone.
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| Wall-mountable |
●You can install the phone on a wall using an optional wall-mount kit.
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| Key expansion module (KEM) |
●The phone supports up to two KEMs to expand from 5 or 10 line buttons to 61 or 66 line buttons. You have the convenience of many speed dials or programmable features, or the necessity of following the activity of many lines.
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| Physical security |
●The phone is compatible with the Kensington Security Slot (K-Slot) antitheft system.
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| Power features |
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| IEEE Power over Ethernet (PoE) |
●The phone offers IEEE Power over Ethernet class 3 for hardware versions prior to V08 and class 4 for hardware versions V08 and above. In the case of PoE class 3, one KEM can be attached and powered through PoE together with the host 8851 phone. In the PoE class 4 case, two KEMs can be attached and powered through PoE together with the host 8851 phone.
●The phone is compatible with both IEEE 802.3af and 802.3at switch blades and supports both Cisco Discovery Protocol and Link Layer Discovery Protocol - Power over Ethernet (LLDP-PoE).
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| Power Input Rating |
● 0.917A, 48V DC
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| Cisco IP Phone Power Cube 4 |
●This optional power cube is used as an AC-to-DC (48V) power supply for non-PoE deployments. Use of the power cube 4 also requires the use of one of the corresponding AC country cords.
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| Call-control support |
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| Cisco Unified Communications Manager |
●12.5 and later
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| Cisco Unified Communications Manager Express (Unified CME) |
●10.0 and later through fast track
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| Cisco Business Edition 6000 (BE 6000) |
●8.6.2
●9.1.2
●10.5.2
●11.0 and later
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| Cisco Hosted Collaboration Solution (HCS) |
●8.6.2 and later (using supported UCM versions)
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Licensing
The Cisco IP Phone 8851NR requires an Enhanced User Connect License (UCL) in order to connect to Cisco Unified Communications Manager.
Product specifications
Table 2 lists the features and specifications of the Cisco IP Phone 8851NR.
Table 2.Features and specifications
| Features |
Specifications |
| Audio |
●Automatic Gain Control
●Comfort Noise Generation
●Silence Suppression/Voice Activity Detection
●Acoustic Echo Cancellation (AEC)
●Dynamic Noise Reduction
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| Audio codec support |
●G.711 (A-law and µ-law), G.722, G.722.2, G.729ab, iLBC, iSAC, OPUS
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| Key call features support |
●+ Dialing
●Abbreviated dialing
●Adjustable ring tones and volume levels
●Adjustable display brightness
●Agent greeting
●Auto-answer
●Auto-detection of headset
●cBarge
●Busy Lamp Field (BLF)
●BLF pickup
●BLF speed dial
●Callback
●Call forward
●Call forward notification
●Call filter
●Call history lists
●Call park
●Call pickup
●Call timer
●Call waiting
●Call chaperone
●Caller ID
●Corporate directory
●Conference, including traditional Join feature
●Cross Cluster Extension Mobility (EMCC)
●Direct transfer
●Extension mobility
●Fast-dial service
●Forced access codes and client matter codes
●Group call pickup
●Hold
●Intercom
●Immediate divert
●Malicious-caller ID
●Message Waiting Indicator (MWI)
●Meet-me conference
●Mobility
●Music on Hold (MoH)
●Mute
●Network profiles (automatic)
●On- and off-network distinctive ringing
●Personal directory
●Pickup
●Predialing before sending
●Privacy
●Private Line Automated Ringdown (PLAR)
●Redial
●Ring tone per line appearance
●Service Uniform Resource Locator (URL)
●Shared line
●Silent monitoring and recording
●Speed dial
●Time and date display
●Transfer
●Uniform Resource Identifier (URI) dialing
●Visual voicemail
●Voicemail
●Whisper coaching
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| Electronic hookswitch |
●You can control the hookswitch electronically with a third-party headset connected to either the USB port or auxiliary port, or directly paired with the phone through bluetooth.
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| Quality-of-Service (QoS) options |
●The phone supports Cisco Discovery Protocol 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.
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| Network features |
●Session Initiation Protocol (SIP) for signaling
●Session Description Protocol (SDP)
●IPv4 and IPv6
●User Datagram Protocol (UDP) (used only for Real-Time Transport Protocol [RTP] streams)
●Dynamic Host Configuration Protocol (DHCP) client or static configuration
●Gratuitous Address Resolution Protocol (GARP)
●Domain Name System (DNS)
●Trivial File Transfer Protocol (TFTP)
●Secure Hypertext Transfer Protocol (HTTPS)
●VLAN
●Real-Time Transport Protocol (RTP)
●Real-Time Control Protocol (RTCP)
●Cisco Peer-to-Peer Distribution Protocol (PPDP)
●Cisco Discovery Protocol
●LLDP (including LLDP-MED)
●Switch speed auto-negotiation
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| Security features |
●Secure boot
●Secure credential storage
●Device authentication
●Configuration file authentication and encryption
●Image authentication
●Random bit generation
●Hardware cryptographic acceleration
●Certificate Authority Proxy Function (CAPF)
●Manufacturer-Installed Certificates (MIC)
●Locally Significant Certificates (LSC)
●Ethernet 802.1x supplicant options: Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)
●Signaling authentication and encryption using TLS
●Media authentication and encryption using SRTP
●HTTPS for client and server
●Secure Shell (SSH) Protocol server
●Secure Sockets Layer (SSL)-based VPN client
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| Physical dimensions |
●9.02 x 10.13 x 1.57 in. (229.1 x 257.34 x 40 mm) (excluding foot stand)
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| Weight (with handset) |
●2.62 lb (1.19 kg)
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| Phone-casing composition |
●Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic; Cosmetic class A
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| Operational temperature |
●32 to 104°F (0 to 40°C)
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| Nonoperational temperature shock |
●14 to 140°F (-10 to 60°C)
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| Humidity |
●Operating 10 to 90%, noncondensing
●Non-operating 10 to 95%, noncondensing
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| Language support |
●Arabic (Arabic Area)
●Bulgarian (Bulgaria)
●Catalan (Spain)
●Chinese (China)
●Chinese (Hong Kong)
●Chinese (Taiwan)
●Croatian (Croatia)
●Czech (Czech Republic)
●Danish (Denmark)
●Dutch (Netherlands)
●English (United Kingdom)
●Estonian (Estonia)
●French (France)
●French (Canada)
●Finnish (Finland)
●German (Germany)
●Greek (Greece)
●Hungarian (Hungary)
●Italian (Italy)
●Japanese (Japan)
●Latvian (Latvia)
●Lithuanian (Lithuania)
●Korean (Korea Republic)
●Norwegian (Norway)
●Polish (Poland)
●Portuguese (Portugal)
●Portuguese (Brazil)
●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)
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| Certification and compliance |
●Regulatory compliance
◦CE Markings per directives 2004/108/EC and 2006/95/EC
●Safety
◦UL 60950 Second Edition ◦CAN/CSA-C22.2 No. 60950 Second Edition ◦EN 60950 Second Edition (including A11 and A12) ◦IEC 60950 Second Edition (including A11 and A12) ◦AS/NZS 60950 ◦GB4943
●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 ◦Industry standards: TIA 810 and TIA 920 ◦Industry standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at ◦Korea (RRA Public Notification 2010-36, Nov 01, 2010) ◦Korea (RRA Announce 2011-2, Feb 28, 2011)
●Radio
◦FCC Part 2.1093 (BT RF Exposure TR) ◦RSS-102 (BT RF Exposure TR) ◦RSS-210 ◦EN 300.328 ◦EN50385 (BT RF Exposure TR) ◦EN 301-489-1 ◦EN 301-489-17 ◦NCC LP0002 ◦Korea (RRL No. 2006-128, RRL No. 2006-129) ◦Japan Bluetooth GFSK/EDR |
Ordering information
Table 3 provides ordering information for the phone and its accessories.
Table 3.Ordering information
| Product number |
Description |
| CP-8851NR-K9= |
●Cisco IP Phone 8851NR, Charcoal
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| CP-DX-HS= |
●Spare Handset for Cisco IP Phone 7800, 8800, DX600 Series, Charcoal
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| CP-DX-CORD= |
●Spare Handset Cord for Cisco IP Phone 8800, DX600 Series, Charcoal
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| CP-8800-A-KEM= |
●Key Expansion Module for Cisco IP Phone 8800 Series
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| CP-8800-WMK= |
●Spare Wallmount Kit for Cisco IP Phone 8800 Series
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| CP-8800-A-KEM-WMK= |
●Spare Wallmount Kit for Cisco IP Phone 8800 Series with single KEM
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| CP-8800-FS= |
●Spare Foot stand for Cisco IP Phone 8800 Series
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| CP-8800-B-BEZEL= |
●Spare Black Bezel for Cisco IP Phone 8800 Series
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| CP-8800-S-BEZEL= |
●Spare Silver Bezel for Cisco IP Phone 8800 Series
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| CP-PWR-CUBE-4= |
●Cisco Power Cube 4
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| CP-PWR-CUBE-4-S= |
●Cisco Power Cube 4 with power switch
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| CP-PWR-CORD-AP= |
●Power Cord Asia Pacific
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| CP-PWR-CORD-AR= |
●Power Cord Argentina
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| CP-PWR-CORD-AU= |
●Power Cord Australia
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| CP-PWR-CORD-BZ= |
●Power cord for Brazil
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| CP-PWR-CORD-CE= |
●Power Cord European
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| CP-PWR-CORD-CN= |
●Power Cord China
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| CP-PWR-CORD-JP= |
●Power Cord Japan
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| CP-PWR-CORD-NA= |
●Power Cord North America
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| CP-PWR-CORD-SW= |
●Power Cord Switzerland
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| CP-PWR-CORD-UK= |
●Power Cord United Kingdom
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More information
For additional details about the Cisco IP Phone 8800 Series, go to https://www.cisco.com/go/ipphones/8800.
| Model | CP-8851NR-K9 |