Cisco
Cisco 8821 Wireless IP Phone CP-8821-K9 | Ruggedized IP67 VoWLAN Handset
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Cisco CP-8821-K9 Wireless IP Phone — Ruggedized VoWLAN Handset
Save up to 70% over MSRP on the Cisco 8821 Wireless IP Phone (CP-8821-K9), professionally refurbished to like-new condition and backed by Reef Telecom's 10-year warranty. This ruggedized, enterprise-grade wireless handset delivers reliable Voice over Wireless LAN (VoWLAN) communications for highly mobile workers in healthcare, manufacturing, retail, and industrial environments.
Key Specifications
- Display: 2.4-inch color screen, 240 x 320 pixel resolution
- Wireless: IEEE 802.11a/b/g/n/ac Wi-Fi for VoWLAN
- Bluetooth: Bluetooth 4.0 for wireless headset support
- Durability: IP67 rated (dust-tight, water submersion up to 1m) & MIL-STD-810G shock tested
- Protocol: SIP — requires Cisco Unified Communications Manager
- Lines: Up to 6 lines supported
- Audio: Full-duplex speakerphone, wideband HD voice, 3.5mm headset jack
- Battery Life: Up to 13 hours talk time / 240 hours standby (battery sold separately)
- Security: WPA2 Enterprise, 802.1x EAP-TLS, SRTP encryption, SHA-2 support
- Roaming: Fast secure roaming via 802.11r
What's Included
This listing is for the Cisco 8821 handset only (CP-8821-K9). Battery and charger are sold separately. See our accessories for compatible batteries, desktop chargers, and carrying cases.
Compatibility
Compatible with Cisco Unified Communications Manager 9.1(2) and later, Cisco SRST 10.x+, and Cisco UCM Express 10.x+. Ideal for enterprise deployments requiring mobile VoIP in demanding environments such as hospitals, warehouses, manufacturing floors, and retail locations.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

We clean up after ourselves.
Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 81 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.