CP-8821-K9 – wireless VoIP phone

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CP-8821-K9

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List Price: $2827 $220
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CP-8821-K9 Description

The Cisco Wireless IP Phone 8821 (CP-8821-K9) is a rugged, enterprise-grade wireless handset designed for mobile workers in demanding environments such as healthcare, manufacturing, retail, and warehouses.With support for dual-band Wi-Fi (802.11a/b/g/n/ac), the 8821 delivers secure and seamless VoIP communications across enterprise WLANs. Its IP67-rated rugged design provides protection against dust, water immersion, and drops, making it ideal for frontline staff.The 2.4-inch color display and intuitive UI ensure easy call handling, while wideband audio with noise suppression enhances clarity in noisy environments. The handset offers up to 13 hours of talk time, supporting long shifts without interruption. Connectivity options include a 3.5 mm headset jack and Bluetooth, providing flexibility for hands-free communication.Fully compatible with Cisco Unified Communications Manager, Cisco Business Edition 6000, and Hosted Collaboration Solution, the CP-8821-K9 enables secure, mobile collaboration for enterprises requiring reliable wireless IP telephony.

Quick Specs

Parameter

Specification

Device Type

Ruggedized Wireless IP Phone

Display

2.4-inch color display, 240 × 320 pixels

Wireless

Dual-band 802.11a/b/g/n/ac Wi-Fi (2.4 & 5 GHz)

Rugged Rating

IP67 dustproof & waterproof, MIL-STD-810G shock resistance

Audio

Wideband audio, noise suppression, full-duplex speakerphone

Battery

Lithium-ion, up to 13 hours talk time, 240 hrs standby

Headset Support

3.5 mm jack, Bluetooth headset

Security

802.1X, WPA2-Enterprise, TLS, AES encryption

Dimensions

5.2 × 2.1 × 0.7 in (132 × 53 × 18 mm)

Weight

4.8 oz (136 g)

Call Control Platforms

Cisco UCM 9.1.2+, CME 10.3+, BE6000, HCS

Product Comparison

Feature / Model

CP-8821-K9

CP-8821-EX-K9-BUN

CP-8851-K9

Device Type

Rugged Wi-Fi IP Phone

Explosion-proof Wi-Fi IP Phone

Desktop IP Phone

Display

2.4″, 240 × 320 color

2.4″, 240 × 320 color

5″, 800 × 480 color

Wireless

Wi-Fi 802.11a/b/g/n/ac

Wi-Fi 802.11a/b/g/n/ac

Not supported

Explosion Proof

No

Yes (IECEx/ATEX Zone 1)

No

Battery Life

~13 hours talk

~13 hours talk

N/A

Headset Support

3.5 mm + Bluetooth

3.5 mm + Bluetooth

RJ-9, USB, Bluetooth

Rugged Rating

IP67

IP67 + Hazardous Zone 1

N/A

Best Use Case

Rugged field workers

Hazardous industrial zones

Office/enterprise desk phone

Model Selection Guide – Cisco CP-8821-K9

  • Healthcare & Clinical Mobility
    Nurses, doctors, and mobile healthcare staff benefit from the 8821’s rugged design, disinfectant-resistant housing, and long battery life, ensuring reliable wireless voice in hospitals and clinics.
  • Warehousing & Manufacturing
    With IP67 dust/water resistance and shock-proof housing, the 8821 is ideal for logistics, warehouses, and factories, where employees need durable mobile communication tools.
  • Retail & Hospitality
    Enables mobile collaboration across large floor areas, ensuring managers, staff, and support teams stay connected in real time.
  • Field Services
    Designed for mobile technicians and engineers, the 8821 integrates with Cisco UC to provide secure, enterprise-grade voice over Wi-Fi in rugged outdoor or indoor environments.
  • Upgrade Path
    For hazardous industrial zones, use the CP-8821-EX-K9-BUN (explosion-proof model). For executives requiring a desktop collaboration phone with video, step up to the Cisco 8865 or 8875.

Specifications

Parameter Specification
Model Cisco Wireless IP Phone 8821 (CP-8821-K9)
Display 2.4-inch color display, 240 × 320 pixels
Wireless Dual-band Wi-Fi 802.11a/b/g/n/ac (2.4 GHz & 5 GHz)
Rugged Rating IP67 waterproof/dustproof, MIL-STD-810G drop/shock
Audio Wideband audio, noise suppression, full-duplex speakerphone
Battery Lithium-ion, up to 13 hours talk time, 240 hours standby
Headset Support 3.5 mm headset jack, Bluetooth headset
Security 802.1X, WPA2-Enterprise, TLS, AES encryption
USB Port Yes (charging & service)
Dimensions 132 × 53 × 18 mm (5.2 × 2.1 × 0.7 in)
Weight 136 g (4.8 oz)
Durability Withstands multiple 5 ft (1.5 m) drops to concrete
Call Control Platforms CUCM 9.1.2+, CME 10.3+, BE6000, HCS

Get More Information

Discover unbeatable prices and fast shipping for the CP-8821-K9 Access the detailed CP-8821-K9 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

Customer Reviews

Write A Review
5.0
(4 reviews)
5 Stars
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4 Stars
0
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1 Stars
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    Dr. Strange
    Posted on 05/09/2024
    Verified Buyer
    5.0

    Wireless connectivity is magical. Battery lasts a whole shift.

    Dr. House
    Posted on 18/06/2024
    Verified Buyer
    5.0

    It’s not Lupus. It’s a good phone. It works. Now go away.

    Hospital IT
    Posted on 08/02/2024
    Verified Buyer
    5.0

    Standard for our nurses. Rugged and easy to clean. Roaming works well on our Wi-Fi.

    Logistics
    Posted on 20/12/2023
    Verified Buyer
    5.0

    Inventory scanning team uses these for voice. Drop proof so far.

Questions & Answers

  • What makes the Cisco CP-8821-K9 a good enterprise Wi-Fi phone for mobile staff?

    It’s rugged, supports 802.11a/b/g/n/ac Wi-Fi, features enterprise roaming, and offers long battery life with wideband audio. Ideal for healthcare, retail floors, and warehousing.

  • How does CP-8821-K9 compare to CP-8821-EX-K9-BUN?

    The EX bundle targets hazardous environments with intrinsic safety ratings. Standard CP-8821 suits typical enterprise mobility without the extra certifications.

  • What Wi-Fi design tips ensure reliable CP-8821 performance?

    Use voice-optimized SSIDs, fast roaming (802.11r/k/v where supported), proper cell overlap, and predictable RSSI thresholds. Avoid 2.4 GHz congestion and ensure QoS with WMM and CAC.

  • Does CP-8821-K9 integrate with CUCM and Webex Calling?

    Yes. It registers to CUCM and can integrate with Webex workflows. Ensure appropriate call admission control and SRST policies for outages.

  • How durable is CP-8821-K9?

    It’s built with enterprise durability, including drop resistance and optional rugged cases. Replace batteries on schedule for consistent runtime.

  • What headset options are available?

    Bluetooth headsets are supported. For noisy areas, choose noise-cancelling models and verify call controls work with current firmware.

  • How to manage batteries at scale?

    Use pooled chargers and track cycles. Replace aging packs preemptively, especially in 24/7 operations like hospitals or warehouses.

  • Is location tracking supported?

    With compatible infrastructure, device location can be estimated. Coordinate with security and privacy policies before enabling.

  • How do I secure Wi-Fi calling on CP-8821-K9?

    Use WPA2/WPA3-Enterprise with certificates, segment voice SSIDs, and enforce TLS/SRTP for signaling and media.

  • Troubleshooting roaming drops?

    Check coverage holes, sticky client behavior, and 5 GHz channel planning. Validate 802.11r/k/v settings and handset firmware.

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