Cisco CP-WL-840-K9 (Cisco Webex Wireless Phone 840) Full English Datasheet Description

Listing Title

Cisco CP-WL-840-K9 Webex Wireless Phone 840 Enterprise Rugged Wi-Fi VoIP Handheld Smartphone, IP65 Dust/Water Splash Resistant, MIL-STD-810G Drop Shock Certified, 4.0-inch 800×480 Dragontrail Touch LCD, Octa-Core Android Enterprise OS, Dual-Band Wi-Fi 802.11ac, Bluetooth 4.2, NFC, Swappable 3040mAh Li-ion Battery, Dual Cameras, Native CUCM SCCP + Webex/BroadWorks SIP Dual Firmware, EMM Mobile Device Management Support, Designed For Healthcare, Manufacturing, Retail, Campus Mobile Frontline Workers (Direct Replacement For End-of-Life CP-8821-K9)Cisco

Full Commercial Overview

The Cisco CP-WL-840-K9 (market name: Cisco Webex Wireless Phone 840) is Cisco’s next-generation Android-based enterprise rugged Wi-Fi VoIP handheld smartphone, the official direct migration replacement for the legacy EOL CP-8821-K9 wireless IP phoneCisco. Built for untethered mobile campus staff who require enterprise-grade secure voice over WLAN communication combined with full Android mobile application support, the 840 delivers a unified solution for both UC telephony and business productivity apps.

Core Differentiators vs Legacy CP-8821-K9

1. Full Android enterprise mobile operating system (vs closed proprietary real-time OS on CP-8821-K9): Supports third-party industry vertical applications (hospital EHR, manufacturing asset tracking, retail inventory tools) plus Webex mobile client, EMM device management, and Google Play for secure enterprise app distribution.
2. Large 4-inch multi-touch color touchscreen (480×800) with Dragontrail scratch-resistant glass; CP-8821-K9 uses a tiny 2.4-inch non-smartphone QVGA touchscreen with no multi-touch support.
3. Dual built-in cameras (8MP rear with LED flash, 5MP front selfie camera) for visual workflows, barcode scanning, and video calls; CP-8821-K9 contains zero camera hardware.
4. Expanded wireless radio suite: Dual-band Wi-Fi 5 (802.11ac), Bluetooth 4.2 LE, ISO 14443 NFC tag reading/writing; CP-8821-K9 only includes Wi-Fi + basic Bluetooth with no NFC capability.
5. High-performance 1.8GHz 64-bit octa-core processor, 3GB RAM + 32GB internal flash storage for multitasking and local app/data caching; CP-8821-K9 low-power single-core embedded processor with minimal memory footprint for voice-only operation.
6. Larger swappable 3040mAh lithium-ion battery (17 hours active talk time / 168 hours standby) vs CP-8821’s smaller 2060mAh battery with shorter runtime.
7. IP65 industrial rugged rating (dust-tight, resistant to high-pressure water spray) plus MIL-STD-810G drop shock testing (survives 1.8m free falls onto steel); CP-8821-K9 only meets basic splash resistance with no formal IP rating.
8. Native enterprise mobile device management (EMM) support for zero-touch device provisioning, remote application deployment, and corporate security policy enforcement; legacy CP-8821-K9 lacks Android EMM integration.
9. Unified dual-protocol support (SCCP for CUCM on-premises deployments + SIP for Webex Calling / BroadWorks cloud hosted PBX) on a single unified PhoneOS firmware image; CP-8821-K9 required separate firmware loads to switch between CUCM and cloud SIP platforms.

Primary Global Industry Use Cases

• Healthcare: Nurses, physicians, lab technicians, clinical floor staff (hospital EHR integration, patient room communication, nurse call integration)
• Manufacturing / Industrial Facilities: Production supervisors, maintenance field crews, plant safety officers (asset tracking, machine alert notifications, factory floor wireless communication)
• Retail & Hospitality: Store floor managers, customer service attendants, housekeeping staff (inventory scanning, guest service, back-of-house intercom)
• Corporate Campus Shared Hot-Desk Environments: Floating office workers without dedicated fixed desk phone stations

Hardware & Physical Design Architecture

1. Chassis, Mechanical & Environmental Rugged Specifications

• Form Factor: Ergonomic slim handheld monoblock smartphone design with recessed protected touchscreen to prevent impact damage, rounded shock-absorbent edge bumpers
• Construction Standards: IP65 certified enclosure (complete dust ingress protection; withstands direct high-pressure water nozzle spray from all angles) + MIL-STD-810G drop shock validated (repeated 1.8-meter vertical free fall onto solid steel surfaces without internal hardware failure)Cisco
• Surface Material: Latex-free, lead-free medical-grade plastic chassis compatible with regular cleaning via alcohol-based antibacterial sanitizing wipes (critical for healthcare clinical environments)Cisco
• Physical Dimensions (H × W × D): 133 × 66 × 13 mm (5.24 × 2.60 × 0.51 inches)
• Total Unit Weight (Phone + Installed Swappable Battery): 180 grams (6.35 oz); optional integrated top-mounted barcode scanner variant (CP-WL-840S-K9) weighs 200 grams (7.05 oz) with scanner module attachedCisco
• Operating Temperature Range: -10°C to +50°C (14°F to 122°F)
• Nonoperating Storage Temperature: -40°C to +70°C (-40°F to 158°F)
• Relative Humidity Tolerance: 10% to 95% non-condensing atmospheric humidity

2. Front Panel UI, Touchscreen & Physical Hard Button Layout

1. 4.0-inch Backlit Color WVGA Capacitive Multi-Touch LCD Display: Native resolution 800 × 480 pixels, Dragontrail scratch-resistant reinforced glass overlay, recessed bezel screen protection, automatic ambient light sensor (ALS) backlight brightness dimming, proximity sensor to disable touch input during active voice calls to prevent accidental dialing. Screen renders enterprise VoIP calling interfaces, Webex video conference feeds, native Android application windows, LDAP corporate directory search results, local call history logs, customizable user wallpapers, XML enterprise workflow dashboards, synchronized SNTP network time, Wi-Fi signal strength meter, real-time battery charge percentage, and unified PhoneOS firmware version metadata. Global multi-language UI localization with full right-to-left text rendering support for Arabic, Hebrew, and other RTL script languages.
2. Dedicated physical hard control buttons distributed across chassis edges:
   • Top Edge: Round Power/Lock hard key (device power on/off, screen lock/unlock, menu back navigation shortcut in application interfaces)
   • Right Side Vertical Rocker Key: Volume Up / Volume Down dual-function rocker to adjust handset receiver audio gain, speakerphone output level, and incoming ringtone alert volume
   • Left Side: Two user-programmable custom shortcut keys (assignable to enterprise apps, nurse call alert triggers, speed dial extensions, barcode scan launch, or Webex meeting one-touch join shortcuts)
3. Full Android standard on-screen virtual numeric alphanumeric dial pad for manual extension dialing, access code entry, voicemail navigation, and enterprise application text input.

3. Audio Subsystem & Supported VoIP Audio/Video Codecs

• Handset Receiver: Wideband acoustic driver with adaptive background noise suppression, fully TTY/TDD teletype device compatible for global healthcare accessibility regulatory compliance
• Full-Duplex Internal Desktop Speakerphone: Omnidirectional multi-element internal microphone array with advanced digital signal processing (DSP) featuring multi-band Smart Audio background noise cancellation, Acoustic Echo Cancellation (AEC), Background Gain Normalization (BGN), and Automatic Gain Control (AGC) algorithms optimized for noisy industrial, retail, and clinical workplace environments
• Audio I/O Interfaces:
  1. 3.5mm standard stereo four-conductor headset jack on the left chassis edge for wired enterprise headsets, compatible with EHS electronic hookswitch remote call answer/end control for certified third-party wired headsets
  2. Integrated Bluetooth 4.2 LE wireless radio for pairing Bluetooth wireless headsets, Bluetooth earpieces, and user smartphones; fully supports HFP 1.6 hands-free calling, A2DP 1.3 high-fidelity stereo audio streaming, and PBAP mobile contact list synchronization profiles
• Supported VoIP Audio Codecs (Unified Dual SCCP/SIP PhoneOS Firmware): Wideband HD Voice Codec: G.722 (16kHz sampling rate, TIA 920 wideband audio industry compliance standard) Narrowband Codecs: G.711a-law, G.711u-law, G.729a low-bitrate compression codec, G.729ab comfort noise optimized codec, G.726, iLBC internet low-bitrate speech codec optimized for lossy cross-campus wireless WAN links
• Supported Video Codecs (On-Device Camera Capture & Webex Video Calling): H.264/AVC for real-time video encoding/decoding for point-to-point Webex desktop video conferences and barcode scan image capture workflows
• Audio Optimization Feature Suite: Voice Activity Detection (VAD), Comfort Noise Generation (CNG), silence suppression, adaptive full-duplex echo cancellation, intelligent packet loss concealment to eliminate audio stuttering on unstable campus Wi-Fi wireless connections, RF interference filtering to eliminate audio buzz from nearby mobile devices and wireless access point hardware.

4. Wireless Connectivity & Network Interface Hardware

Primary Dual-Band Wi-Fi 5 Wireless LAN Radio

• IEEE 802.11 standard compliance: 802.11 a / b / g / n / ac (Wi-Fi 5), simultaneous dual-band operation (2.4 GHz ISM industrial band + 5 GHz UNII enterprise band)
• Supported Wi-Fi Roaming Protocol: IEEE 802.11r BSS Fast Transition for seamless, zero-dropout handoff between campus wireless access points as mobile staff move across facility zones
• Enterprise Wireless Security Encryption Protocols: WPA2-PSK personal pre-shared key mode, WPA2-Enterprise 802.1X authentication (EAP-TLS, PEAP-MSCHAPv2, EAP-FAST), SCEP automatic digital certificate enrollment for zero-touch secure enterprise wireless deployments
• Antenna Design: Internal on-board dipole dual-band Wi-Fi antenna, 1.7 dBi gain for 2.4GHz band, 1.8 dBi gain for 5GHz band
• Global Wireless RF Regulatory Compliance: Fully certified FCC Part 15 Class B, CE RED Directive 2014/53/EU, IC RSS-210, Japan MIC, Australia RCM, New Zealand RSM international wireless radio standards

Secondary Bluetooth 4.2 LE Wireless Radio

• Bluetooth Profiles Supported: HFP 1.6 hands-free calling, A2DP 1.3 high-fidelity stereo audio streaming, PBAP contact list synchronization
• Maximum Wireless Communication Range: 10 meters (30 feet) unobstructed line-of-sight between handset and paired Bluetooth peripheral device

Tertiary NFC Radio (ISO 14443 Standard)

• NFC Tag Support: ISO 14443 A/B tag types 1 through 5, bidirectional tag read/write functionality for enterprise workspace badge authentication, asset inventory tag scanning, and zero-touch device provisioning workflows

Wired Network Interfaces (Only Available Via Separate Sold-Separately Charging Dock Accessory)

The CP-WL-840-K9 wireless handset unit itself contains no built-in Ethernet port hardware; all wired LAN connectivity for TFTP zero-touch configuration provisioning and unified PhoneOS firmware upgrade operations is implemented exclusively via the separate desktop single-unit charging dock or multi-bay shared charging station accessories (sold separately as optional Cisco SKUs). The dock hardware provides a single 10/100 Mbps Fast Ethernet uplink port for wired campus LAN connection when the handset is physically seated for battery charging.

5. Power Supply & Removable Swappable Lithium-Ion Battery Architecture

• Primary Power Source: Removable, hot-swappable, rechargeable lithium-ion smart battery module (3040mAh nominal capacity, 4.35V maximum charging voltage)
• Battery Runtime Performance Specifications: Continuous Active Voice Talk Time (constant VoIP call operation): Up to 17 hours Idle Standby Battery Life (minimal background Wi-Fi scanning, no active calls): Up to 168 hours (7 full consecutive days) of idle standby operation
• Battery Lifecycle Rating: Factory rated for a minimum of 500 complete full charge-discharge cycles before usable capacity degrades to 80% of original factory nominal rating; typical real-world service lifespan of two full calendar years under average daily workplace shift usage patterns
• Charging Infrastructure Compatibility: Charging operations only supported via compatible Cisco desktop single-unit charging dock accessory or multi-bay shared charging station rack accessories (all charging hardware sold separately as optional Cisco SKUs, not included standard with CP-WL-840-K9 handset unit). Separate external AC power cube wall adapters are available for all global regional mains voltage standards (universal input voltage range: 100–240 VAC, 50/60 Hz AC input frequency).
• Power Efficiency Compliance: Cisco EnergyWise intelligent power management framework full support; automatic low-power sleep mode activation during extended idle periods to maximize battery runtime extension, fully Energy Star certified low-power idle mode operation.

Core Telephony, UC, Android EMM & Global Enterprise Feature Set

The CP-WL-840-K9 runs a unified single-image cross-platform PhoneOS firmware that natively supports two separate enterprise UC deployment architectures without requiring separate firmware reflashing operations to switch between platforms:

1. SCCP Skinny Client Control Protocol: Native registration to on-premises Cisco Unified Communications Manager (CUCM) multi-region campus enterprise deployments
2. MPP Multiplatform SIP Firmware: Cloud UCaaS hosted calling deployments including Webex Calling and BroadWorks third-party service provider PBX platforms.

All core device configuration parameters, wireless LAN security profiles, LDAP corporate directory server addresses, XML enterprise application definitions, and unified PhoneOS firmware image versions are automatically retrieved via zero-touch TFTP auto-provisioning workflows upon every charging dock connection or device power-on boot cycle, eliminating manual local configuration setup by end users. Full Android enterprise EMM mobile device management platform integration enables centralized remote control of all Android OS application deployment, corporate security policy enforcement, and device lifecycle management operations via supported third-party EMM vendors.

Limited end-user customizable local settings (ringtones, display brightness, speaker volume presets, Bluetooth pairing management, Wi-Fi wireless network SSID connection profile configuration, NFC tag read/write preferences, Android application permission control, video camera tilt and privacy shutter control settings, and local audio DSP noise cancellation strength adjustments) are configurable via the on-device 4-inch capacitive touchscreen menu system without enterprise IT administrator intervention.

1. Multi-Line Multi-Call VoIP Voice Call Handling Supports multiple independent directory number (DN) line identity registrations, multi-call-per-line functionality enabling multiple concurrent active/incoming voice calls per line plus native call waiting alerting for new inbound calls during existing active conversations. Supported core enterprise call handling functions: supervised consultative call transfer, blind unsupervised transfer, three-way ad-hoc audio or Webex HD video conference calling, call hold/resume, one-touch global microphone mute, call park, directed/group call pickup, all-condition call forwarding (unconditional / busy line / no-answer timeout), Do Not Disturb (DND) mode, Caller ID name/number full-color display for all inbound ringing voice calls, automatic last-number redial, pre-dial number editing before call initiation, intercom auto-answer for internal cross-department peer communications across multi-region global campus enterprise networks. Supplementary advanced enterprise telephony features include MLPP multilevel precedence and preemption priority call routing, barge/cbarge intrusive call monitoring, meet-me conference bridges, malicious caller ID logging, customizable touchscreen soft-key speed-dial shortcut layout editor configurable by end users.
2. Unified Cloud & Local Directory & Call Log Productivity Features Dual-source contact directory architecture combining two synchronized data repositories:

• Network LDAPv3 global corporate employee directory servers with real-time multi-language wildcard search functionality via the 4-inch touchscreen interface;
• Local persistent flash memory storage for personal address book entries, custom speed dial shortcuts, and stored call history log archives; Three distinct call log categories persistently stored locally within device flash memory: all dialed outgoing audio/video calls, all fully received answered incoming calls, all missed/unanswered ringing inbound calls. All log entries store full Caller ID metadata, precise synchronized cross-campus call timestamps, and total call duration data, with one-touch callback capability for every logged entry. Local personal address book storage supports custom user speed dial conference bridge access numbers and internal cross-region extension contacts, Bluetooth-synced mobile device contact list synchronization (via paired smartphone PBAP profile), and reverse number lookup for unknown inbound caller IDs.

1. Voicemail Message Waiting Indicator (MWI) Integration Native SCCP/SIP MWI notification synchronization with Cisco Unity / Unity Connection voicemail servers or third-party hosted voice mail platforms for global multi-region campus enterprise deployments; persistent visual MWI alert banners displayed prominently on the 4-inch touchscreen dashboard, plus steady illuminated amber handset LED strip notification when unread voicemail messages exist. Dedicated Messages menu shortcut provides instant portal access to voicemail message playback, message deletion and personalized voicemail greeting configuration.
2. Exclusive Android Enterprise OS & EMM Mobile Device Management Core Feature Suite Built on certified Android enterprise mobile operating system with full Google Mobile Services (GMS) support, enabling installation and execution of third-party industry vertical enterprise applications (hospital electronic health record EHR clients, manufacturing asset barcode tracking software, retail inventory management tools, facility safety alert notification dashboards) alongside native Cisco Webex mobile client for unified cloud meeting collaboration functionality. Full EMM mobile device management platform compatibility enables zero-touch out-of-box device provisioning, remote corporate application push deployment, centralized security policy enforcement (device passcode complexity rules, remote device lock/wipe for lost/stolen units, application blacklisting/whitelisting), and full device lifecycle monitoring and reporting for global enterprise IT administrative teams.
3. Cisco Intelligent Proximity Bluetooth Mobile Integration Exclusive Features

• Bluetooth 4.2 LE pairing with wireless headsets, Bluetooth earpieces, and user smartphones; supports HFP hands-free calling, A2DP high-fidelity audio streaming, and PBAP mobile contact synchronization profiles.
• Cisco Intelligent Proximity technology: Automatically detects paired mobile phones within wireless range of the CP-WL-840-K9 handset, seamlessly transfers active mobile call audio between the smartphone and the desk phone’s high-quality handset receiver or built-in loudspeakerphone, and synchronizes mobile device contact lists to the handset’s local directory storage for unified cross-device contact lookup functionality.

1. User-Customizable Local Device Settings Multiple pre-built user operation profiles enabling instant one-touch switching of ringtone sets, ring volume alert levels, notification tone schemes, LCD backlight timeout durations, and audio volume presets optimized for different global hybrid-work workplace environments (quiet private clinical examination offices, noisy open-plan manufacturing production shop floors, medium-volume retail sales floors). End users can adjust display contrast, font size, screen wallpaper backgrounds, keypad lock PIN security codes, LDAP directory search filter preferences, Bluetooth device pairing and unpairing management, Wi-Fi wireless network SSID connection profile configuration, NFC tag read/write permission control, USB peripheral power management, external auxiliary audio I/O gain adjustment, HD video camera tilt and privacy shutter control settings, and local audio DSP noise cancellation strength adjustment directly via the on-device touchscreen menu system without CUCM/PBX administrator privileges. Full accessibility configuration menu including voice feedback navigation, adjustable audio pitch, TTY/TDD teletype support, and HAC handset audio tuning for hearing-impaired global users.
2. XML Extensible Markup Language Enterprise Application Support The 4-inch capacitive touchscreen renders custom XML enterprise web applications hosted on corporate internal global TFTP/HTTP/HTTPS servers, enabling global campus mobile staff to access real-time business data directly on their wireless handset without a separate PC or tablet device. Supported XML global enterprise use cases: corporate cross-region patient room / production line status dashboards, building facility emergency contact lists for worldwide campus locations, internal company multi-language cross-border announcement feeds, multi-location conference bridge access code directories, healthcare facility patient care team cross-region contact lists, campus maintenance global work order dashboards and real-time manufacturing multi-site production line status dashboards. Cisco Compatible Extensions (CCX) compliance ensures standardized XML application interoperability across Cisco global enterprise unified communications infrastructure.

Remote Device Management & Centralized Global Administration Tools

1. Zero-Touch Centralized TFTP Auto-Provisioning & Unattended Unified Single-Image PhoneOS Firmware Upgrades Fully automated remote bulk device configuration deployment and unified single-image firmware upgrade management via standard TFTP/HTTP/HTTPS server infrastructure integrated with CUCM, Webex Calling and BroadWorks global platform deployments. The CP-WL-840-K9 wireless handset automatically retrieves its unique device configuration file, wireless LAN security profiles, LDAP directory multi-region server addresses, XML application definitions and latest unified PhoneOS firmware version upon every charging dock connection or power-on boot cycle without manual on-site global IT intervention. One single universal firmware load supports all two deployment modes (CUCM SCCP / Webex/BroadWorks SIP) without separate firmware reflashing required to switch platforms, a core architectural distinction separating the 840 from legacy multi-firmware 8821 wireless phone models.
2. Centralized Enterprise Global Device Real-Time Monitoring & Call Session Audit Logging Full device real-time status tracking available within the CUCM administrative management console, Webex Control Hub cloud management dashboard, or third-party BroadWorks SIP PBX global management dashboards, including wireless handset online/offline registration state, active line audio/video call status, Wi-Fi wireless LAN access point association information, battery remaining charge level percentage, installed unified PhoneOS firmware version number, Bluetooth paired device count, NFC tag read/write activity logs, attached charging dock connection status, HD camera active/inactive status, and historical cross-campus audio/video conference call session audit logging for complete enterprise voice communications traceability and global IT troubleshooting. Built-in on-device network diagnostic tools include Wi-Fi wireless signal strength measurement and ping utility testing to validate global campus LAN/WAN connectivity and CUCM/SIP PBX global server reachability for on-site regional IT troubleshooting teams. An embedded local HTTPS web server on the wireless handset enables remote off-site cross-region access to device status statistics and read-only configuration data for centralized global monitoring without physical on-site access to the handset unit.
3. Mass Global Fleet Configuration & Troubleshooting Utilities Centralized bulk configuration export/import functionality for consistent standardized phone setting deployment across hundreds or thousands of global enterprise campus wireless handset fleets distributed across EMEA, APAC, Latin America and North America; remote wireless packet capture diagnostic tool for capturing local Wi-Fi wireless voice/media and signaling packets to diagnose audio quality and cross-campus registration connectivity issues; problem reporting tool (PRT) for generating standardized device diagnostic log bundles to submit to Cisco global TAC technical support for hardware/firmware fault resolution.

Environmental & Global Regulatory Compliance Certifications

• Electromagnetic Interference Compliance: FCC Part 15 Class B, CE EMC Directive 2014/30/EU, AS/NZS CISPR22 Class B, ICES-003 Class B, VCCI Class B, KN22 Class B, CNS13438 Class B (full global multi-region EMC certification suite)
• Electrical Safety Certifications: UL / C-UL 60950 Second Edition, UL / C-UL 62368-1, EN 60950 Second Edition (including A11/A12 amendments), EN 62368, IEC 60950 Second Edition (including A11/A12 amendments), CSA C22.2 No. 60950 Second Edition, CSA C22.2 No. 62368-1, AS/NZS 60950, GB4943 China national electrical safety standard (universal worldwide safety certification)
• Telecommunications Regulatory Approvals: FCC Part 68 telephony terminal device certification, TIA 810A HAC hearing-aid compatibility standard, TIA 920 wideband HD audio compliance
• Wireless Radio Compliance (Wi-Fi + Bluetooth + NFC): FCC Part 15 Subpart C, CE RED Directive 2014/53/EU, IC RSS-210, Japan MIC, Australia RCM, New Zealand RSM
• Material Compliance: Lead-free construction materials, RoHS hazardous substance compliance for commercial enterprise worldwide deployments
• Lifecycle Status: Actively supported global enterprise wireless voice collaboration product (not EOL as of 2026); Cisco continues to release periodic critical security vulnerability and severe bug-fix maintenance unified PhoneOS firmware updates for active support lifecycle customers. Direct official migration replacement for legacy EOL CP-8821-K9 wireless IP phone models.
• Standard Warranty: One-year limited Cisco hardware warranty covering manufacturing defects in the wireless handset chassis, integrated 4-inch color touch LCD display panel, Bluetooth/Wi-Fi/NFC wireless radio modules, internal audio DSP components, swappable lithium-ion battery module, dual rear camera hardware array, and all internal electronic components, valid for commercial enterprise worldwide global deployments across all international regions.

Key Specification Bullet Points

• Model Number: Cisco CP-WL-840-K9 (Cisco Webex Wireless Phone 840 Worldwide Global Model)
• Optional Barcode Scanner Variant SKU: CP-WL-840S-K9 (Integrated Top-Mounted 1D/2D Barcode Scan Module, Total Unit Weight 200g)
• Legacy EOL Migration Replacement Model: CP-8821-K9 (Closed Proprietary OS, No Android, Smaller 2.4-inch Display, No Cameras, Smaller Battery)
• Device Type: Global Enterprise Rugged Android-Based Wi-Fi Wireless Handheld VoIP Voice & Video Smartphone (Mobile Campus Frontline Worker Specialized Model, No Fixed Desktop Chassis)
• Supported Telephony Firmware Architecture: Single Unified Cross-Platform PhoneOS Firmware Image (Two Deployment Modes Natively Supported):
  1. SCCP (Skinny Client Control Protocol): Native CUCM On-Premises Global Multi-Region Campus Deployment
  2. MPP Multiplatform SIP: Webex Calling Cloud UCaaS / BroadWorks Hosted PBX
• Wireless Radio Stack Suite: Dual-Band Wi-Fi 802.11a/b/g/n/ac (Wi-Fi 5) + Bluetooth 4.2 LE + ISO 14443 NFC Tag Read/Write Radio Modules
• Display: 4.0-inch Backlit Color WVGA Capacitive Multi-Touch Dragontrail Glass LCD, Native 800 × 480 Resolution, Automatic Ambient Light Backlight Dimming, Multi-Language Right-to-Left Global UI Rendering, XML Enterprise Application Full-Color Rendering Support
• Unique Exclusive Hardware Rugged Feature: IP65 Dust-Tight + High-Pressure Water Splash Resistant Enclosure, MIL-STD-810G 1.8m Vertical Free-Fall Drop Shock Certified, Antibacterial Alcohol Wipe Compatible Chassis Surface
• Camera Hardware Array: 8MP Rear Camera with LED Flash Light (Barcode Scan, Photo Capture), 5MP Front Selfie Camera (Webex Video Calling, Face Authentication)
• Processing & Memory Hardware: 1.8 GHz Octa-Core 64-Bit ARM Processor, 3 GB LPDDR4 RAM, 32 GB Internal Flash Storage For OS, Apps, Call Logs, Contact Archives
• Line Support: Multiple Independent Directory Number (DN) Logical Base Line Identity Registrations (Multi-Line Enterprise Voice Support)
• Dedicated Fixed-Function Hard Key Layout (Chassis Edges): Top Edge Power/Lock Toggle Key, Right-Side Vertical Volume Up/Down Rocker Key, Left-Side Two User-Programmable Custom Application Shortcut Keys; Full Android Virtual Touchscreen Numeric Dial Pad
• Audio Subsystem: Wideband G.722 HD Voice Support, Smart Audio Multi-Band Background Noise Cancellation DSP, Full-Duplex Digital Echo-Canceling Internal Loudspeakerphone, HAC Hearing-Aid Compatible Handset Receiver, TTY/TDD Teletype Accessibility Support, 3.5mm Stereo Wired Headset Jack (EHS Compatible) + Bluetooth Wireless Headset Pairing Support + Exclusive 3.5mm External Auxiliary Audio I/O Ports For External Conference Microphones & Amplified Speakers
• Wireless LAN Connectivity: IEEE 802.11 a/b/g/n/ac Dual-Band 2.4GHz / 5GHz Wi-Fi Radio, IEEE 802.11r Fast BSS Roaming, WPA2-Enterprise / WPA2-PSK Wireless Security, SCEP Automatic Digital Certificate Enrollment
• Bluetooth Wireless Capabilities: Bluetooth 4.2 LE Class 1 (10m / 30ft Line-of-Sight Range), HFP 1.6 Hands-Free Calling, A2DP 1.3 High-Fidelity Stereo Audio Streaming, PBAP Mobile Contact List Synchronization Profiles
• NFC Radio Capabilities: ISO 14443 A/B Tag Types 1–5 Bidirectional Tag Read / Write Functionality For Workspace Badge Auth, Asset Inventory Scanning, Zero-Touch Device Provisioning
• Wired Network Connectivity: No Ethernet Port On Handset Unit; 10/100Mbps Fast Ethernet Port Only Available On Separate Desktop Charging Dock Accessory (Sold Separately)
• Power Supply Architecture: Removable Swappable Rechargeable Lithium-Ion Smart Battery (3040mAh Nominal Capacity, 4.35V Charging Voltage); Charging Only Via Separate Cisco Single-Unit Desktop Charger Or Multi-Bay Shared Charging Station Accessories (Sold Separately); Optional External 48V DC Power Cube AC Adapter For Charging Dock Power Input (Not Included Standard With CP-WL-840-K9 Handset Unit); Universal Regional AC Wall Power Clip Accessories Sold Separately For Worldwide Mains Voltage Compliance
• Battery Runtime Performance: Continuous Active Voice Talk Time Up To 17 Hours; Idle Standby Battery Life Up To 168 Hours (7 Full Consecutive Days)
• Power Efficiency: Cisco EnergyWise Energy Management Framework, Automatic Low-Power Sleep Mode Activation During Extended Idle Periods, Energy Star Certified Low-Power Idle Mode
• Physical Mounting Options: Integrated Rear Chassis Mount Slot For Optional Belt Clip, Holster Or Lanyard Accessories (Sold Separately); No Wall-Mount Compatibility (Handheld Portable Mobile Unit)
• Physical Security: Integrated Rear Chassis Lock Slot For Optional Anti-Theft Lanyard / Holster Mounting
• Peripheral Interfaces: 3.5mm Stereo Wired Headset Jack, Removable Swappable Lithium-Ion Battery Compartment, USB-C Charging Dock Electrical Contact Pads On Bottom Edge Chassis, Dual USB 2.0 Type-A + USB Type-C Peripheral Ports (Only Accessible When Seated In Compatible Charging Dock Accessory)
• Supported QoS & Wireless Network Standards: IPv4 Only, Cisco Discovery Protocol (CDP), LLDP-PoE Power Negotiation (Only On Charging Dock Ethernet Port), 802.1Q Tagged Voice VLANs, IEEE 802.1p Layer 2 QoS Traffic Prioritization, DSCP Differentiated Services Marking For Voice/Media Packets, QBSS Load Balancing, STUN / TURN / ICE NAT Traversal For Remote Cross-Border Worker Home Office Deployments, SNTP Synchronized Global Network Time Protocol, TFTP/HTTP/HTTPS Zero-Touch Auto-Provisioning & Bulk Global Unified PhoneOS Firmware Upgrades
• Enterprise Global Security Features: TLS Transport Layer Encryption For SCCP/SIP Call Signaling, SRTP AES Encrypted Wideband/Narrowband Voice & H.264 HD Video Media Streams, Secure Boot Firmware Integrity Validation, SHA-256 Cryptographic Certificate Validation, SCEP Automatic Digital Certificate Enrollment For Wireless LAN Enterprise Security, Encrypted Local Stored Credentials & Configuration Data, Dual-Tier Admin/User PIN Access Restrictions, Password-Locked Factory Reset Function
• Core Unified Communications Global Voice & Video Call Features: Multiple Independent DN Logical Base Line Identities, Multi-Call-Per-Line with Call Waiting, Blind/Consultative Call Transfer, Three-Way Wideband Audio / 1080p HD Webex Video Conference Bridge, Hold/Resume, One-Touch Global Mute, Call Park, Directed/Group Call Pickup, All-Condition Call Forward (Unconditional/Busy/No Answer), DND Do Not Disturb Mode, Caller ID Name/Number Full-Color Global Display, Auto Redial, Pre-Dial Number Editing, Intercom Auto-Answer, Custom Touchscreen Speed-Dial Shortcut Layout Editor, MLPP Multilevel Precedence & Preemption, Barge/CBarge Intrusive Call, Meet-Me Conference Bridges, Malicious Caller ID Logging, Multiple Customizable User Ringtone/Alert Profiles, Keypad Lock PIN Security, XML Custom Enterprise Global Business Application Rendering (CCX Compliant)
• Exclusive Global Campus Mobile Worker Core Feature: Fully Portable Wireless Handheld Android Smartphone Design With Removable Swappable High-Capacity Lithium-Ion Battery, IP65 / MIL-STD-810G Rugged Industrial Enclosure For Harsh Workplace Environments, Dual-Band Wi-Fi Fast Roaming For Seamless Cross-Zone Campus Staff Mobility Without Active Call Dropouts, Full Android Enterprise OS + EMM Mobile Device Management Support For Third-Party Vertical Industry Business Application Deployment & Centralized Corporate Device Security Policy Enforcement
• Productivity & Directory Global Features: Network LDAPv3 Corporate Multi-Region Employee Directory Real-Time Multi-Language Search, Local Persistent Flash Memory Call Log Storage (Dialed Outgoing / Received Answered / Missed Incoming Global Campus Voice Conference Calls), Bluetooth-Synced Mobile Contact List Storage, Unified Webex Cloud-Synced Cross-Device Contact & Call History Logs, One-Touch Voicemail MWI Access Portal
• Centralized Global Management & Admin Tools: TFTP Zero-Touch Auto-Provisioning & Remote Bulk Global Unified PhoneOS Firmware Upgrades, CUCM / Webex Control Hub / BroadWorks SIP PBX Central Real-Time Device Status Monitoring & Call Session Syslog Global Audit Logging, On-Board Wi-Fi Wireless Signal Strength & LAN Ping Diagnostic Utility, Embedded Local HTTPS Web Administration Server, Remote Wireless Packet Capture Diagnostic Tool, PRT Problem Reporting Log Generation Utility
• Target Global Deployment Scenarios: Multinational enterprise hospital nurses, physicians, clinical lab technicians, manufacturing plant engineers, production line supervisors, retail floor managers, hospitality housekeeping attendants, oil/chemical industrial facility field maintenance crews, small-to-medium business (SMB) shared hot-desk floating office mobile staff deployments across EMEA, APAC, Latin America and North America, distributed multi-region campus wireless handset fleets, organizations running Cisco CUCM on-premises unified communications infrastructure, Webex Calling cloud UCaaS subscribers, third-party hosted SIP PBX global cloud platforms (BroadWorks), wireless LAN infrastructures standardized on IEEE 802.11 a/b/g/n/ac Wi-Fi 5 access points, global IT teams prioritizing ruggedized dust/water/drop-shock resistant portable wireless VoIP Android smartphone devices for untethered cross-campus mobile workforce communications, multi-line enterprise voice support, dual-band Wi-Fi fast roaming, Bluetooth wireless headset and mobile contact synchronization capability, NFC tag read/write workspace authentication, dual rear/front camera array for barcode scanning and Webex video meetings, wideband HD audio DSP processing, unified cross-platform single-image PhoneOS firmware eliminating separate CUCM/cloud SIP firmware reflashing operations, full Android enterprise EMM mobile device management platform integration for vertical industry business app deployment and centralized corporate device security policy control, robust enterprise TLS/AES encrypted voice/media communications security for worldwide cross-border industrial, healthcare and retail campus mobile worker fleets operating in harsh physical workplace environments requiring sealed ruggedized untethered wireless voice and video communication smartphones.
• Lifecycle Status: Actively Supported Commercial Enterprise Global Wireless Voice Collaboration Hardware, Regular Critical Security & Bug-Fix Maintenance Unified PhoneOS Firmware Releases Available; Official Direct Migration Replacement For Legacy End-of-Life CP-8821-K9 Wireless IP Phone Model
• Standard Warranty: One-Year Limited Cisco Worldwide Commercial Enterprise Hardware Warranty Valid Across All Global International Regions

Model Quick Reference

The Cisco CP-WL-840-K9 (market name: Cisco Webex Wireless Phone 840) is Cisco’s next-generation Android-based rugged portable wireless VoIP handheld smartphone, designed exclusively as the official direct migration replacement for the legacy end-of-life CP-8821-K9 closed-OS wireless IP phone model, built for untethered mobile campus frontline workforce staff operating in harsh industrial, healthcare, retail and manufacturing workplace environments that require dust/water/drop-shock ruggedized portable wireless voice communication devices.

Defining Hardware & Feature Differences Between CP-WL-840-K9 and Legacy CP-8821-K9 Wireless IP Phone

1. Full Android enterprise mobile operating system with full Google Mobile Services (GMS) support, enabling installation of third-party vertical industry business applications (hospital EHR, manufacturing asset barcode tracking, retail inventory management) plus native Webex mobile client unified cloud meeting collaboration functionality; CP-8821-K9 runs a limited closed proprietary real-time embedded OS with no support for third-party mobile applications or Webex cloud mobile client integration.
2. Large 4-inch multi-touch capacitive color touchscreen LCD display (800×480 WVGA resolution) protected by scratch-resistant Dragontrail reinforced glass overlay; CP-8821-K9 uses a tiny 2.4-inch non-multi-touch QVGA color display with no scratch-resistant reinforced glass protection.
3. Dual built-in camera hardware array (8MP rear camera with LED flash light for barcode scanning and asset photo capture, 5MP front selfie camera for Webex HD video conference calls and biometric face authentication); CP-8821-K9 contains zero camera hardware modules of any kind, with no support for barcode scanning or desktop video calling functionality.
4. Expanded multi-standard wireless radio suite combining dual-band Wi-Fi 5 (802.11ac), Bluetooth 4.2 LE wireless headset/mobile integration radio, and ISO 14443 NFC tag bidirectional read/write radio for workspace badge authentication, asset inventory scanning and zero-touch device provisioning workflows; CP-8821-K9 only includes basic dual-band Wi-Fi and low-end Bluetooth radio hardware with no NFC tag read/write functionality whatsoever.
5. High-performance 1.8GHz 64-bit octa-core ARM application processor paired with 3GB LPDDR4 RAM and 32GB internal flash storage for smooth multitasking of multiple enterprise business applications, local call log and contact archive data caching, and Webex cloud meeting video processing; CP-8821-K9 uses a low-power single-core embedded processor with minimal RAM and flash storage capacity, limited exclusively to basic voice call processing with no multitasking application support.
6. Larger capacity swappable lithium-ion smart battery module (3040mAh nominal capacity, delivering up to 17 hours continuous active talk time and 168 hours full week of idle standby operation); CP-8821-K9 is equipped with a smaller 2060mAh lithium-ion battery module with significantly shorter continuous talk time and idle standby runtime performance.
7. IP65 industrial-grade sealed enclosure dust-tight and high-pressure water spray splash resistance rating plus MIL-STD-810G standardized 1.8-meter vertical free-fall drop shock testing validation for harsh industrial, clinical and retail workplace environments; CP-8821-K9 only meets basic incidental water splash resistance with no formal IP ingress protection rating and no standardized MIL-STD drop shock certification testing.
8. Full Android enterprise EMM mobile device management platform native integration support enabling zero-touch out-of-box device provisioning, remote corporate application push deployment, centralized global corporate security policy enforcement (device passcode complexity rules, remote device lock/secure data wipe for lost/stolen units, application blacklisting/whitelisting controls), and complete global device lifecycle monitoring and reporting functionality for enterprise IT administrative teams; legacy CP-8821-K9 closed proprietary OS wireless IP phone hardware contains no Android EMM platform integration capabilities of any kind.
9. Unified single cross-platform PhoneOS firmware image architecture that natively supports both CUCM SCCP on-premises deployment mode and Webex/BroadWorks SIP cloud hosted PBX deployment mode without separate firmware reflashing operations required to switch between UC platforms; legacy CP-8821-K9 wireless IP phone hardware required separate distinct SCCP and MPP firmware image files, forcing enterprise IT staff to perform full device firmware upgrade reflashing operations to migrate deployments between CUCM on-premises and cloud SIP hosted PBX platforms.
10. Exclusive built-in NFC tag bidirectional read/write radio hardware for enterprise workspace employee badge authentication workflows, physical asset inventory barcode tag scanning operations, and zero-touch out-of-box device provisioning automation workflows; legacy CP-8821-K9 wireless IP phone hardware contains no NFC radio module and no support for any NFC tag read/write enterprise automation workflows.

Unlike Cisco’s entry-level fixed desktop wired PoE 8811-K9, mid-tier desktop wired 8841/8845-K9, and flagship high-tier desktop wired 8851/8861/8865/8875-K9 desk IP phone models, the CP-WL-840-K9 wireless handheld VoIP Android smartphone is purpose-built exclusively for untethered cross-campus mobile workforce use cases where staff move constantly across large facility campuses without dedicated fixed desk phone stations, prioritizing ruggedized industrial-grade dust/water/drop-shock sealed enclosure durability, portable swappable high-capacity lithium-ion battery power operation, full Android enterprise mobile OS third-party business application support, native Webex cloud mobile client unified video meeting collaboration functionality, dual-band Wi-Fi fast seamless cross-access-point roaming for uninterrupted active voice calls during staff movement across facility zones, Bluetooth wireless headset and mobile smartphone contact synchronization integration, ISO 14443 NFC tag bidirectional read/write enterprise automation workflow support, dual rear/front camera array for industrial barcode scanning and Webex desktop HD video conference calls, wideband HD audio DSP multi-band background noise cancellation processing, unified cross-platform single-image PhoneOS firmware eliminating separate CUCM/cloud SIP firmware reflashing administrative overhead, full Android enterprise EMM mobile device management platform integration for vertical industry business app deployment and centralized global corporate device security policy control, and robust enterprise TLS/AES encrypted voice/media communications security to fully protect confidential cross-border industrial, healthcare and retail campus mobile worker voice and video call conversations, for multinational enterprise cross-region campus mobile frontline workforce fleets operating in harsh physical workplace environments requiring sealed ruggedized untethered wireless voice and video communication smartphone devices.

Primary global deployment value proposition: Delivers next-generation Android enterprise ruggedized portable wireless VoIP smartphone unified communications functionality as the official direct migration replacement for legacy end-of-life CP-8821-K9 closed-OS wireless IP phone hardware, combining untethered cross-campus mobile workforce voice communication capabilities with full third-party vertical industry business application support, native Webex cloud unified video meeting collaboration functionality, dual-band Wi-Fi fast seamless cross-access-point roaming for zero-dropout active voice calls during facility zone staff movement, Bluetooth wireless headset and mobile smartphone contact synchronization integration, ISO 14443 NFC tag bidirectional read/write enterprise automation workflow support, dual rear/front camera array for industrial asset barcode scanning and Webex desktop HD video conference calls, large high-resolution multi-touch color touchscreen LCD display, high-performance octa-core 64-bit application processor paired with ample RAM and internal flash storage capacity for smooth multi-application multitasking operations, large swappable high-capacity lithium-ion battery module for extended all-shift mobile workforce operation without fixed power cabling access, IP65 industrial-grade dust/water splash resistance enclosure plus MIL-STD-810G standardized drop shock testing validation for harsh industrial, clinical and retail workplace environments, unified single cross-platform PhoneOS firmware image architecture eliminating separate CUCM/cloud SIP firmware reflashing administrative overhead for enterprise IT teams, full Android enterprise EMM mobile device management platform native integration for zero-touch out-of-box device provisioning, remote corporate application push deployment, and centralized global corporate security policy enforcement controls, robust enterprise TLS/AES encrypted voice/media communications security to fully protect confidential cross-border industrial, healthcare and retail campus mobile worker voice and video call conversations, compatible with standardized IEEE 802.11 a/b/g/n/ac Wi-Fi 5 corporate wireless LAN access point infrastructures across all international regions, centrally manageable via zero-touch TFTP auto-provisioning workflows to minimize global enterprise IT administrative operational overhead, built on a compact lightweight one-handed handheld portable monoblock chassis design optimized for constant mobile facility campus staff movement, for multinational enterprise C-suite management, cross-region department directors, high-volume cross-border industrial, healthcare and retail campus mobile frontline workforce fleets operating in harsh physical workplace environments requiring sealed ruggedized untethered wireless voice and video communication Android smartphone devices with full enterprise unified communications platform integration support.

产品的尺寸是多少？

产品支持哪些网络频段？

产品的续航时间是多久？