CP-8821-K9, Cisco 8821 Wireless IP Phone, Rugged design/802.11 WLAN/On-premises VoWLAN

  • Brand: Cisco
  • Model: CP-8821-K9
  • In Stock
    • United States
    • United Kingdom
    • Germany
    • United Arab Emirates
    • Singapore
    • India
    • Hong Kong
Rating:
97%
4.9/5.0
List Price: $1,256.00
1% OFF
$1,247.00
  • 100% Genuine
    100% Genuine
    Original, factory-verified
    3-Year Warranty
    3-Year Warranty
    Extended, enterprise-grade
    23 Years Expertise
    24 Years Expertise
    Proven, deployment-focused
  • Condition
    • Original New · Covered SN
    Express Shipping to United States Get Shipping Estimate
    Estimated shipping time: 2–6 business days via DHL, FedEx, UPS and more
    expert
    Certified Expertise Builds Trust
    CCIE · JNCIE · NSE7 · ACDX · HPE Master ASE · Dell Server/AI Expert
    • Faster Delivery, Globally Ready

      Faster Delivery, Globally Ready

      20+ years of supply chain expertise for faster multi-stop delivery with smooth customs.

      48H Worldwide Shipping
      10+ Global Warehouses
    • Keep Projects On Time

      Keep Projects On Time

      Reliable availability and real-time shipment visibility to keep every critical IT project on schedule.

    • Leading Global Distributor Since 2002

      Leading Global Distributor
      Since 2002

      A global ICT bridge delivering authentic hardware and trusted service for over 20 years.

        21500+ Enterprise Clients Served200+ Countries & Regions Covered
    • Worry-Free Coverage with RSCare

      Worry-Free Coverage with RSCare

      3-Year warranty for enterprise hardware, including advanced RMA, diagnostics, spare parts support, and OEM service compatibility.

      Cisco SmartNet
      HPE Foundation Care
      Dell ProSupport
      Juniper Care
      Fortinet Support
    • Your Trusted Genuine Source

      Your Trusted Genuine Source

      Authorized partnerships with 30+ brands, including Cisco, HPE, Dell, Juniper, and Fortinet.

      100% Authentic Products
      100,000+ Multi-Brand SKUs Available
    Overview

    Cisco CP-8821-K9 Overview

    The Cisco CP-8821-K9 is a rugged, enterprise-grade wireless IP phone designed for mobile staff in demanding environments. It supports 802.11a/b/g/n/ac WLAN with flexible 2.4GHz and 5GHz operating modes and multiple nonoverlapping channels to ensure reliable on-premises VoWLAN coverage. A 2.4-inch color display and Bluetooth or 3.5mm headset options enhance usability, while the IP67 rating, MIL-STD-810G endurance, and up to 13 hours of voice battery life make it ideal for 24/7 operations across healthcare, manufacturing, and campus networks.

    Product Highlights

    13 hours
    Talk Time
    IP67
    Ingress Prot
    802.11ac
    Wi-Fi Std

    Product Applications Scenarios

    Enterprise Network
    CP-8821-K9 delivers mobile VoWLAN across offices and campuses, reducing cabling costs by up to 30% while maintaining secure voice for knowledge workers.
    Edge & IoT
    Rugged IP67 design and wide temperature range enable reliable voice in warehouses and factories, cutting downtime from communication gaps by up to 20%.
    Public Infrastructure
    In hospitals, airports, and campuses, roaming VoWLAN handsets improve staff coordination and response times, with seamless 2.4/5GHz coverage and long battery life.

    Product Features Comparison

    Cisco Cisco Cisco Cisco
    Model CP-8821-K9, Cisco 8821 Wireless IP Phone, Rugged design/802.11 WLAN/On-premises VoWLAN CP-8865-K9, Cisco 8800 IP Phone, 5-inch Display/HD Audio/USB Port CP-7861-K9, Cisco CP-7861, Unified IP Phone, 16 Lines, 3.5" Display, Handset Included CP-8845-K9, Cisco 8800 IP Phone, 5" Color Display/HD Audio/PoE Support
    Brand Cisco Cisco Cisco Cisco
    Wi-Fi Standard n/a n/a n/a n/a
    Maximum Data Rate n/a n/a n/a n/a
    Supported Frequency Band n/a n/a n/a n/a
    Client Capacity n/a n/a n/a n/a
    Network Interface n/a n/a n/a n/a

    Optional Add-ons

    Model Number Description
    CP-PWR-CUBE-3 Cisco CP-PWR-CUBE-3 external power adapter for Cisco 7900/8800 series IP Phones, AC 100-240V
    CP-8831-K9= Cisco CP-8831-K9= Unified IP Conference Phone for extending Cisco IP voice deployments in meeting rooms
    CP-7925G-WC-CH1-K9 Cisco CP-7925G-WC-CH1-K9 wireless Unified IP Phone, Wi-Fi handset complementing CP-8821 mobility

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Cisco CP-8821-K9 Specification

    Model
    CP-8821-K9
    Brand
    Cisco
    Protocols
    · IEEE 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
    Frequency bands and operating channels
    · 2.412 to 2.472GHz (channels 1 to 13) · 5.180 to 5.240GHz (channels 36 to 48) · 5.260 to 5.320GHz (channels 52 to 64) · 5.500 to 5.700GHz (channels 100 to 140) · 5.745 to 5.825GHz (channels 149 to 165) · IEEE 802.11d is used to identify available channels
    Nonoverlapping channels
    · 2.4GHz (20-MHz channels): up to 3 channels · 5GHz (20-MHz channels): up to 24 channels · 5GHz (40-MHz channels): up to 9 channels · 5GHz (80-MHz channels): up to 4 channels
    Operating modes
    · Auto (preference to 5GHz) · 2.4GHz only · 5 GHzonly
    Display
    · 2.4-in. (6-cm) color display with 240 x 320 pixel resolution
    Dimensions (HxWxD)
    · 5.2 x 2.2 x 0.7in. (13.2 x 5.6 x 1.7cm)
    Battery
    · Up to 13 hours of voice calling; up to 220 hours standby · Rechargeable Lithium ion 4.35V, 2060mAh smart battery Note: Actual battery life varies significantly based on environmental factors, scan mode, and Bluetooth use.
    Input power
    · Phone: 100 to 240 VAC, ~0.2A, and 50 to 60 Hz · AC adapters (by geographical region)
    Operating temperature
    · Device: 14° to 122°F (-10° to 50°C) · Battery: -4° to 140°F (-20° to 60°C)
    Storage temperature
    · Device: -22° to 140°F (-30° to 60°C) · Battery: -4° to 113°F (-20° to 45°C)
    Relative humidity
    · 10% to 95% (noncondensing)
    Vibration
    · 1.5 Grms maximum, 0.1in. (2.5mm) double amplitude at 0.887 octaves per minute from 5-500-5 Hz sweep, and 10-minute dwell on three major peaks in each of the three major mutually perpendicular axes
    Thermal shock
    · -22°F (-30°C) 24 hours; 158°F (70°C) 24 hours
    Altitude
    · Certified for operation: 0 to 6500 ft (0 to 2 km)
    Endurance
    · Ingress Protection Standard IP67 · MIL-STD-810G Drop and Vibration procedures
    Drop specs
    · Withstand multiple drops of 6 feet (1.8 m) onto concrete. 12 drops (6 faces, 4 edges, face, and bottom)
    Headset
    · Wireless: Bluetooth SW 3.0 HW 4.0 · Wired: 3.5mm stereo headphone/microphone jack
    Connector
    · Magnetic USB 2.0 On the Go (OTG) connector
    Safety
    · UL 60950-1 · CAN/CSA 60950-1 · EN 60950-1 · IEC 60950-1 · AS/NZS 60950.1 · IEC 60529 (IP 67)
    Electromagnetic compatibility and electromagnetic interference (EMC/EMI)
    · 47 CFR Part 15 Class B · ICES-003 Class B · EN 55022 Class B · AS/NZS CISPR 22 Class B · CISPR 22 Class B · VCCI Class B · EN 61000-3-2 · EN 61000-3-3 · KN 22 Class B · EN 55024 · EN 50082-1 · EN 61000-6-1 · EN61000-6-3 · EN 300386 · EN 60601-1-2 · KN Immunity Series
    Telecom
    · FCC Part 68 (CFR) (HAC) · NZ PTC 220 DR · AS/ACIF S004 and AS/ACIF S040 (Australia) · TIA 810-B and TIA 920-A · Canada-CS-03-HAC
    Radio
    · USA: FCC Part 15.247 (2.4GHz), FCC Part 15.407 (5GHz), and FCC Part 2 · Canada: RSS-210 · Japan: ARIB STD-T66 (2.4GHz), ARIB STD-T70, and T71 (4.9/5GHz) · ETSI: EN 300.328 (2.4GHz) and EN 301.893 (5GHz) · Australia and New Zealand: AS/NZS 4268 · Singapore: IDA TS SRD · Hong Kong: HKTA1039
    RF Exposure
    · OET-65C (01-01) · ANSI C95.1 (91) · RSS-102 · ACA Radio Communications (Electromagnetic Radiation – Human Exposure) Standard 2003 · EN 50360 · EN 301489-1 · EN 301489-17
    Weight
    4.4 kg

    Get more information

    Discover unbeatable prices and fast shipping for the CP-8821-K9, Cisco 8821 Wireless IP Phone, Rugged design/802.11 WLAN/On-premises VoWLAN . Access the detailed CP-8821-K9, Cisco 8821 Wireless IP Phone, Rugged design/802.11 WLAN/On-premises VoWLAN datasheet and ensure you're getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via live chat or email us at [email protected].

    Quality Certifications

    Need Help? Technical Experts Available Now.

    • +1-626-655-0998 (USA)
      UTC 15:00-00:00
    • +852-2592-5389 (HK)
      UTC 00:00-09:00
    • +852-2592-5411 (HK)
      UTC 06:00-15:00
    Need Help? Technical Experts Available Now.
    Q&A

    Questions & Answers

    What are common troubleshooting steps for the Cisco Wireless IP Phone 8821?

    Common troubleshooting includes checking wireless connectivity, ensuring proper configuration with Cisco Unified Communications Manager, and performing firmware updates.

    What accessories are available for the Cisco Wireless IP Phone 8821?

    Accessories include ruggedized protective cases, belt clips, and additional battery packs for extended use.

    How does the Cisco Wireless IP Phone 8821 compare with other models?

    The CP-8821-K9 offers superior ruggedness, secure VoWLAN capabilities, and is purpose-built for high mobility compared to many other IP phones on the market.

    Is router-switch.com a reliable distributor?

    Absolutely. As a multi-brand authorized distributor, router-switch.com is directly certified by leading technology manufacturers. We guarantee 100% genuine products, competitive pricing, and full manufacturer warranties and support.

    Warranty
    • Your Trusted Global ICT Partner

      Delivering reliable, cross-border fulfillment with 20+ years of expertise, backed by rigorous QC, fast logistics, and worldwide warehousing.
      Global warehousing
      Global warehousing
      10+ hubs positioned for fast international dispatch and stable availability.
      Seamless cross-border
      Seamless cross-border
      QC-verified packing and predictable delivery via FedEx, DHL, UPS.
      Your Trusted Global ICT Partner
    • ICT Tools Hub for Confident Monitoring

      ICT Tools Hub for Confident Monitoring

      Stay informed on product lifecycle status and real-time inventory availability—supporting confident planning, sourcing, and operational execution.
      EOL/EOSL Checker
      Verify product lifecycle status to plan purchases and avoid EOL/EOSL risks.
      Request VIP Inventory Portal Access
      Connect via live chat for VIP access to real-time inventory on priority SKUs.
    • Certified Experts Across Leading Vendors

      Professional guidance for network, security & data center builds, delivered by certified experts with extensive, hands-on deployment experience.
      Multi-vendor engineering
      Multi-vendor engineering
      Certified expertise across Cisco, HPE, Aruba, Dell, Juniper, Huawei and Fortinet.
      Deployment-ready guidance
      Deployment-ready guidance
      Faster, safer rollouts with project-focused engineering guidance.
      Certified Experts Across Leading Vendors

    The Choice of 21,500 +Global Customers

    • Ford
    • Disney
    • Nestle
    • Toyota
    • Walmart
    • Philips
    • Ups
    • Huatt
    • Hsbc
    • Novartis
    • Siemens Healthineers
    • Bt
    • Reference Johnson
    • T
    • Att
    • Lgu
    • Sk Telecom
    • Veerizon
    Industry-Leading Warranty Coverage You Can Trust
    • 100% Low Price Guarantee
      100% Low Price Guarantee
      Router-switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
    • 100% Quality Assurance
      100% Quality Assurance
      All items are brand new, original, and factory-sealed.
      Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
    • 100% Money-Back Guarantee
      100% Money-Back Guarantee
      If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly.
      Visit Return Policy page for more information.
    • Free Cisco CCIE Technical Support
      Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
    • Flexible & Secure Payment and Shipping
      Flexible & Secure Payment and Shipping
      We support multiple secure payment and logistics options, backed by industry-leading verification:
      • Pay by wire transfer.
      • Pay with your paypal.
      • Pay with your Visa credit card.
      • Pay with your Mastercard credit card.
      • Pay with your Discover Card.
      • Pay by American Express.
      More
      • mcafee-secure
      • verisign-secured
      • pci-dss
      • ssl-encryption
      Visit How to Pay page for more information
    Warranty Coverage & RMA Instructions
    • Extended, Worry-Free Warranty Coverage
      Extended, Worry-Free Warranty Coverage
      • Factory New Sealed Enterprise Hardware: 3 Years
      • Factory New Sealed Consumer Devices: 1 Year
      Visit Warranty Policy page for more information
    • How to Get Support
      How to Get Support
      If you encounter issues with products, please reach out to your dedicated sales representative. They will assist with diagnostics, remote troubleshooting, and RMA processing if necessary.
      Visit Contact Us page for more support options.

    Best-Fit Solutions for Your Network

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Expert-configured AI solution: Same power, 90% savings—multi-scenario flexibility with Dell/Huawei/Lenovo options.

    AI
    Beyond Bandwidth: The 100G+ Data Center Architecture

    Beyond Bandwidth: The 100G+ Data Center Architecture

    The must-have 100G foundation - AI-ready growth, zero-latency performance

    Data Center
    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    High-Profit data center switches from Cisco, Huawei, Mellanox & Juniper.

    Ethernet Switch
    Download

    Resources Downloads

    Support and Resources
    Model Datasheet