Cisco IP Desk Phone 9851 - Carbon Black

One Phone, Many Platforms - Flexibility all in a Single Phone!

About the Cisco IP Desk Phone 9851

The Cisco IP Desk Phone 9851 sets a new standard for working in modern offices. It has been designed with the newly released PhoneOS Software - PhoneOS Software is configurable for any calling platform, enabling users to simplify their workday and enjoy Advanced AI Audio as well as One Touch Meeting join capabilities.

This cost effective solution integrates seamlessly with Ciscos RoomOS Video Conferencing Solutions, and offers a wide range of features, including secure calling, meetings, desk reservations, and emergency calls, all in one device.

It supports multiple platforms, including Cisco Unified Communications Manager (CUCM), Webex Calling, Broadworks, and other third party cloud platforms.

Along with Ciscos other portfolio of Desk Phones the Cisco IP Desk Phone 9851 provides a cost effective solution for large scale workstation deployments, effectively addressing the evolving needs of hybrid work, calling, and meeting scenarios.

The Cisco IP Desk Phone 9851 supports the Cisco DP-9800-KEM Expansion Module, this is powered by the host phones via the USB-A Port. One Expansion Module can be used with the Cisco 9851.

Action Button

The Cisco IP 9851 has a built in button that can be configured for anything that is important to your business, including emergency calls, security, access to IT support, broadcasting announcements and much more.

Best In Class Security

The industry leading Cisco IP Desk Phone 9851 features TPM (Trusted Platform Module) 2.0 hardware, TLS 1.3, Secure Boot, Image Authentication, and network access control, ensuring unparalleled end-to-end encrypted security. Ideal for government and finance, these phones set the new standard for secure communications.

Enhanced Audio

AI Noise removal on both sides of the call, increased audio quality with AI by converting narrowband audo to wideband audio. The built in Speaker is enhanced by a larger Speaker Driver and new Bass Enhancing Acoustic Enclosure - providing more real, natural sounding voices.

One Phone - Many Platforms

Customise your platform with the flexible operating system, supporting Cisco Unified Communication Manager (CUCM), Webex Calling, Broadworks, and other third-party cloud platforms.

Go Beyond Calling

Simplify your workday with a device that does it all: meetings, desk reservations, and emergency calls.

OBTP to Join a Meeting

OBTP (One Button to Push) enables you to join any meeting quickly from the devices screen (Applicable when Registered to Webex Calling).

Sustainable Phones

The Cisco 9851 is one of Ciscos most sustainable Phones yet, composed of over 74% PCR plastic, low paint design, EnergyStar certification, and energy efficient low power modes. In addition Carbon emission estimates are available in Control Hub.

_{*Please Note that any Lifestyle Images are for Information Purposes and May Include Products from the Same Range, but with Different Features to this Variant*}

Features

• 3.7 Inch Colour LCD - 480 x 240 Resolution - Backlit
• 46 Supported Line and Programmable Keys
• One Desk Reservation and Hot Desking
• 16 Supported Lines for Webex Calling and Open SIP Platforms
• Full Duplex Speakerphone, USB-A Port x 1
• Made from Post Consumer Recycled (PCA) Plastic (More than 74%)
• Action Button, One Phone, Many Platforms
• Manage, Support and Analyse Devices on the Control Hub for Cisco Devices
• Pair the Cisco IP Desk Phone 9851 with your Favourite Cisco Headset
• Supported Platforms - Cisco Webex Calling, Webex Dedicate Instance (DI), Broadworks, Asterisk, Cisco Unified Communication Manager (CUCM) 12.5 or Above*

_{*Not all CUCM Versions Support Cisco Desk Phone 9800 Series Natively, Dev Pack and Device Enabler File (QED) may be Required}

Technical Specifications:

Display

• 3.7 Inch Colour LCD - 480 x 240 Resolution, Backlit

Audio

• Frequency Response: 100 Hz – 20 kHz for Handsfree Speaker
• FEC (Forward Error Correction)
• AEC (Acoustic Echo Cancellation)
• AGC (Automatic Gain Control)
• CNG (Comfort Noise Generation)
• VAD (Voice Activity Detection)
• PLC (Packet Loss Concealment)
• Silence Suppression*
• Acoustic Shock Protection (Handset/Headset)
• Adaptive Jitter Buffer
• Dual Tone Multi-Frequency (DTMF) Tone Generation (RFC 2833 and In-Band)
• Cisco HD Audio, TIA-810/920 and ETSI ES 202 737/738/739/740 Compliant
• Cisco Smart Audio - Conventional and AI Based Background Noise and Voice Removal
• Ultrasonic Support
• HAC (Hearing Aid Compatible) Handset

_{*May Vary Depending on the Codec}

Audio Codec Support

• OPUS, G.722, G.722.2, iSAC, G.711(a-law/μ-law), G.729a/b, and iLBC

Physical Line Keys

• Cisco IP Desk Phone 9851 - 6 Line Keys

Maximum Number of Supported Line and Programmable Keys

• Cisco IP Desk Phone 9851 - 46 Supported and Programmable Line Keys

Maximum Number of Supported SIP Lines

• 130 for CUCM and Webex DI
• 16 for Webex Calling and Open SIP Platforms

Hard Keys

• Action Button, Favourite Button
• Calendar Button
• Hold / Resume, Transfer, and Conference Keys
• Application Key, Directory Key
• Standard Keypad, Volume Control Toggle Key
• Speakerphone, Headset, and Mute Keys
• Navigation and Select Key
• Page Keys (On Optional 9800 KEM Only)

Backlit Indicator

• Supports Backlit Indicator for the Physical Buttons of the Speakerphone, Headset and Mute, Calendar, Select, and Line Keys
• Supports Two Specific LED's, Front Arc LED and Top LED, to Indicate the Devices Status, Including Message Waiting, Missed Call, Hot Desk Availability etc

Handset

• Wideband Capable Audio Handset (Connects Through the Phone’s Dedicated Handset RJ-9 Port)
• The Handset Coiled Cord has a Custom End for Concealed Cable Routing Beneath the Phone (Cord Length is Approximately 21 Inches, (55cm) (1.8 ft Approximately) Coiled and up to 72 Inches (183cm) (6ft) Approximately Extended)
• The Handset is Hearing Aid-Compatible (HAC) and meets Federal Communications Commission (FCC Part 68) Loudness Requirements for Americans with Disabilities Act (ADA). You can Achieve Section 508 Loudness Requirements by using Industry Standard Inline Handset Amplifiers that Include Walker Equipment W-10 or CE-100 Amplifiers

Dialpad

• The Dialpad is ADA Compliant

Speakerphone

• The Full Duplex Speakerphone Provides Flexibility in Placing and Receiving Calls Handsfree, for Added Security, the Audible Dual Tone Multifrequency (DTMF)
  Tones are Masked when the Speakerphone Mode is used

USB Port and Aux Port

• One USB-A Port - The USB-A Port Provides 0.5A Power Output at 5V or 2.5W under PoE, and 1A Power Output at 5V or 5W when using the Cisco Power Adapter 3 (Local Power Supply)
• One USB-C Port - The USB-C Port Provides 0.5A Power Output at 5V or 2.5W Under PoE or when using the Cisco Power Adapter (Local Power Supply)

Cisco 9800-KEM Expansion Module Compatibility and Power

• The 9800 KEM Doesn’t have its Own Local Power - the KEM Power is Provided by the Host Phone - Cisco 9851 Supports 1 Cisco 9800 KEM Module
• IEEE Power over Ethernet Class 3 or Cisco Power Adapter 3, Enables One KEM to be Connected to the Cisco 9851 via the USB-A Port - Cisco 9851 Supports 1 KEM Enabling 46 Lines (40 Lines on KEM and 6 Lines on Phone)

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 Colocated 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

Power

• IEEE Power over Ethernet Class 3
• Input Rating - 0.42A, 48V DC
• Compliant with EU lot-6 and lot-26

Key Call Features Support

• Caller ID, Call Waiting
• Call Hold / Resume
• Music on Hold (MoH)
• Mute / Unmute, Call Forward
• Do not Disturb, Call Park, Call Pickup
• Transfer, Conference, Speed Dial
• Busy Lamp Field (BLF), Recording
• Barge and cBarge (Conference Barge)
• Paging*, Extension Mobility and EMCC*
• Hunt Group, Uniform Resource Identifier (URI) Dialing
• CMS Mute Sync*
• Voicemail, Shared Line, Privacy*
• Local Call History
• Remote Vall History*
• Directory Search, Favorite Contacts*
• Adjustable Ringtones and Volume Levels
• Adjustable Display Brightness
• Time and Date Display
• Time Zone Settings*
• E.911, Intercom*
• CAL*, Help Desk on Favourite Button
• Anti-Spam*, Hoteling*
• Flexible Seating*, MRA*
• Voice Feedback

_{*May Vary Depending on Registered Calling Platform}

Webex Cloud Features

• Webex Unified Call History
• Webex Unified Directory, Calendar
• OBTP (One Button To Push) - One Button to Join Webex Meetings
• Hot Desking, Remote Reboot and Factory Reset
• Metrics for Analytics and Debugging

Network Features

• Session Initiation Protocol (SIP) for Signaling
• Session Description Protocol (SDP)
• IPv4 and IPv6
• Ethernet 802.1x Supplicant Options - Extensible Authentication Protocol Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible
  Authentication Protocol-Transport Layer Security (EAP-TLS)
• Dynamic Host Configuration Protocol (DHCP) Client or Static Configuration
• Gratuitous Address Resolution Protocol (GARP)
• Domain Name System (DNS)
• Trivial File Transfer Protocol (TFTP)
• Secure HTTP (HTTPS), VLAN
• Real-Time Transport Protocol (RTP)
• Real-Time Control Protocol (RTCP)
• Cisco Discovery Protocol
• LLDP (including LLDP Media Endpoint Discovery (LLDP-MED)
• Switch Speed Auto Negotiation, Span to PC

Weight and Dimensions

• Weight - 968g
• Dimensions - 8.9 x 8.4 x 1.9 Inches (226mm x 214mm x 49.4 mm)

Package Contents

• Cisco IP Desk Phone 9851
• Handset, Handset Cable
• Foot Stand, Ethernet Cable