CP-8821-EX-K9-BUN – 8821-EX Wi-Fi Phone – Battery/Adapter Bundle – Hazardous Location

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CP-8821-EX-K9-BUN Description

The CP-8821-EX-K9-BUN is a Cisco Wireless IP Phone 8821-EX handset bundle for wireless voice in ordinary and hazardous locations such as manufacturing, utility and chemical sites. The handset runs IEEE 802.11a/b/g/n/ac with six lines and a 2.4-inch 240 x 320 color display, and the bundle adds the battery, power adapter, power cord and country clip. Hazardous-location use is covered by CSA Class I Division 2 and Class I Zone 2 with IP54 protection, while ATEX Zone 2 Group IIC is listed as pending.

Quick Specs

Parameter

Specification

Product ID

CP-8821-EX-K9-BUN

Cisco ordering description

Cisco Wireless IP Phone 8821-EX World mode, battery, power cord, power adapter, and country clip

Product type

Cisco wireless IP phone handset bundle

Bundle scope

8821-EX device, battery, power cord, power adapter, and country clip

Wireless standards

IEEE 802.11a/b/g/n/ac

Call-control support

Cisco Unified Communications Manager 9.1(2), 10.5(2), 11.0(1), and later

Display

2.4 in. color display, 240 x 320 pixels

Hazardous-location support

US/Canada CSA Class I Division 2 and Class I Zone 2; ATEX Zone 2 Group IIC listed as pending

Protection and durability

IP67 for ordinary locations, IP54 for hazardous-location use, and MIL-STD-810G drop and vibration procedures

Battery

Rechargeable Lithium ion 4.35V, 2060mAh smart battery

Battery runtime

Up to 9.5 hours voice calling, up to 45 hours continuous-scan standby, or up to 145 hours auto-scan standby

Audio and headset

Built-in full-duplex speakerphone, Bluetooth headset support, and 3.5 mm headset jack

Application Scenarios

Chemical Plant Operations

Operators in a chemical plant can carry the handset through Class I Division 2 areas for voice calls over the site’s Cisco wireless network, with IP54 protection in hazardous-location use.

Utility Facility Crews

Maintenance crews at a utility facility can use the handset’s built-in speakerphone and Bluetooth headset support to stay on calls while working across ordinary and classified areas.

Multi-Building Factory Roaming

A factory campus with Cisco access points in several buildings can keep the handset connected as workers move between them, using 802.11r fast transition and Cisco Centralized Key Management for roaming.

Product Comparison

Parameter

CP-8821-EX-K9-BUN

CP-8821-EX-K9=

CP-8821-K9-BUN

Display

2.4 in. 240 x 320 color

2.4 in. 240 x 320 color

2.4 in. 240 x 320 color

Line appearances

6

6

6

Wireless standards

IEEE 802.11a/b/g/n/ac

IEEE 802.11a/b/g/n/ac

IEEE 802.11a/b/g/n/ac

Bluetooth

Bluetooth SW 3.0 HW 4.0

Bluetooth SW 3.0 HW 4.0

Bluetooth SW 3.0 HW 4.0

Ingress protection

IP67 ordinary locations; IP54 hazardous-location use

IP67 ordinary locations; IP54 hazardous-location use

IP54

Hazardous-location support

CSA Class I Division 2 and Class I Zone 2; ATEX Zone 2 Group IIC pending

CSA Class I Division 2 and Class I Zone 2; ATEX Zone 2 Group IIC pending

Not published

Talk time

Up to 9.5 hours

Up to 9.5 hours

Up to 11.5 hours

Bundle contents

Device, battery, power cord, power adapter, country clip

Device only

Device, battery, power cord, power adapter, country clip

CP-8821-EX-K9-BUN and CP-8821-EX-K9= are the same 8821-EX handset, but the bundle adds the battery, power cord, power adapter and country clip, so the device-only SKU needs CP-BATT-8821= and a CP-PWR-8821 regional power kit ordered separately. The hazardous-location rating decides between the EX and standard families: CP-8821-EX-K9-BUN carries CSA Class I Division 2 and Class I Zone 2 support, with ATEX Zone 2 Group IIC listed as pending, and IP67 in ordinary locations, while CP-8821-K9-BUN has no EX listing and IP54, so classified sites must use the EX bundle. Non-hazardous sites that value runtime can use CP-8821-K9-BUN, which talks up to 11.5 hours against 9.5 hours.

Ordering Checklist

  • Country power kit: The bundle includes a country clip; order replacement kits as CP-PWR-8821-NA=, -CE=, -UK= or the other CP-PWR-8821 regional versions. A kit for the wrong region does not fit the local socket.
  • Spare battery: Add CP-BATT-8821= for extra batteries beyond the one in the bundle. The bundle has a single battery, so shift coverage needs spares.
  • Chargers and cases: Order desktop chargers, multi-chargers and cases separately, with PIDs in the 882x Accessory Guide. The handset arrives without a charging station.

Specifications

Parameter Specification Parameter Specification
Product ID CP-8821-EX-K9-BUN Cisco ordering description Cisco Wireless IP Phone 8821-EX World mode, battery, power cord, power adapter, and country clip
Product type Cisco wireless IP phone handset bundle Device-only comparison SKU CP-8821-EX-K9= is Cisco Wireless IP Phone 8821-EX World mode device only
Non-EX comparison SKU CP-8821-K9-BUN is Cisco Wireless IP Phone 8821 World mode bundle Wireless standards IEEE 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac
Signaling protocol Session Initiation Protocol Line appearances Six line appearances
CUCM support Cisco Unified Communications Manager 9.1(2), 10.5(2), 11.0(1), and later SRST support Cisco Unified Survivable Remote Site Telephony 10.5, 11.0, 11.5, 11.7, and later
Unified CME support Cisco Unified Communications Manager Express 10.5, 11.0, 11.5, 11.7 native support, and later HCS support Cisco Hosted Collaboration Solution 9.x, 10.x, 11.x, and later
Access point support Cisco unified AP minimum 8.0.121.0; Cisco autonomous AP minimum 12.4(21a)JY; Cisco Meraki APs Wireless security WPA/WPA2 Personal and Enterprise, EAP-FAST, PEAP-GTC, PEAP-MSCHAPv2, EAP-TLS, and AES
Fast roaming 802.11r Fast Transition and Cisco Centralized Key Management Signature support SHA-1 and SHA-2 signature types
Display 2.4 in. color display with 240 x 320 pixel resolution Application framework XML applications including push-to-talk and paging
Audio codecs G.711a, G.711u, G.729a, G.729ab, G.722, iLBC, and iSAC Audio interfaces Full-duplex speakerphone, Bluetooth SW 3.0 HW 4.0, and 3.5 mm headset jack
Battery Rechargeable Lithium ion 4.35V, 2060mAh smart battery Battery runtime Up to 9.5 hours voice calling, up to 45 hours continuous-scan standby, or up to 145 hours auto-scan standby
Input power Phone 100 to 240 VAC, approximately 0.2A, 50 to 60 Hz, with AC adapters by region Connector type Magnetic USB 2.0 On The Go connector
Ingress protection IP67 for ordinary locations and IP54 for hazardous-location use Test standard MIL-STD-810G Drop and Vibration procedures
Drop test Multiple 5 ft drops onto concrete Hazardous-location support US/Canada CSA Class I Division 2 and Class I Zone 2
ATEX status ATEX Zone 2 Group IIC listed as pending in the Cisco 8821-EX data sheet Dimensions 5.2 x 2.2 x 0.7 in. (13.2 x 5.6 x 1.7 cm)
Weight Device 4.4 oz (126 g), battery 1.3 oz (37 g), total 5.7 oz (163 g) Operating temperature -10°C to 50°C (14°F to 122°F)
Operating altitude Certified operation from 0 to 6500 ft (0 to 2 km)

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Need pricing, stock, or shipping details for the CP-8821-EX-K9-BUN ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.

Quality Certifications

Customer Reviews

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    Marilyn Rivas
    Posted on 16/03/2026
    Verified Buyer
    4.0

    I budgeted extra time for problems. Didn’t need it. Everything went smoothly. Invoice formatting was a bit different from what our AP system expects, but workable.

    Linda Peterson
    Posted on 08/03/2026
    Verified Buyer
    5.0

    Delivery to our office was coordinated without any communication issues.

    Linda Rivas
    Posted on 27/02/2026
    Verified Buyer
    5.0

    Their attention to detail and follow-through impresses our team.

    Mark Watney
    Posted on 12/08/2024
    Verified Buyer
    5.0

    It survived the environment. Tough little phone. Battery life is excellent.

    Safety Officer
    Posted on 10/04/2024
    Verified Buyer
    5.0

    ATEX certified for hazardous environments. Critical for our plant floor. Verified genuine.

Questions & Answers

  • Which 5 GHz channels can CP-8821-EX-K9-BUN use?

    CP-8821-EX-K9-BUN covers UNII-1 channels 36 to 48, UNII-2 channels 52 to 64, UNII-2e channels 100 to 144 and UNII-3 channels 149 to 165, per the Cisco Wireless IP Phone 8821 WLAN deployment guide. Enable the channels your access points use for voice in those bands.
  • What is the maximum transmit power of CP-8821-EX-K9-BUN?

    CP-8821-EX-K9-BUN transmits up to 14 dBm on 5 GHz 802.11a and 12 dBm on 5 GHz VHT. On 2.4 GHz the limit is 17 dBm for 802.11b. Per the 8821 WLAN deployment guide, set access point cell sizes so the handset hears the access point at these levels.
  • How often does CP-8821-EX-K9-BUN report its location?

    CP-8821-EX-K9-BUN reports its location at first registration and again whenever the location changes. If the handset does not move, it reports every 24 hours, per the Cisco Wireless IP Phone 8821 administration guide. Location-based services should expect an update interval of that length for a handset left on a charger or desk.
  • Which firmware and access point releases does CP-8821-EX-K9-BUN need?

    CP-8821-EX-K9-BUN needs firmware 11.0(5) SR1 or higher. Cisco unified access points must run at least 8.0.121.0, per the 8821-EX datasheet. Upgrade the controller and the handset firmware before a rollout, because an older access point release can leave the handset without a supported connection.
  • Which cleaning wipes are safe for CP-8821-EX-K9-BUN in health care?

    Caviwipes and Saniwipes with up to 17% isopropanol are recommended for health care. Higher alcohol content can damage CP-8821-EX-K9-BUN, and wiping more than 3 times a day damages the coating, per the Cisco Wireless IP Phone 8821 administration guide. Set a cleaning routine that stays within those limits.
  • Which PIDs cover a spare handset, battery and power kit for CP-8821-EX-K9-BUN?

    Order CP-8821-EX-K9= for a handset only, CP-BATT-8821= for the battery and CP-PWR-8821-{NA,AR,AU,BZ,CE,IND,KR,JP,SW,UK}= for the regional power kit, per the 8821-EX datasheet. Charger and case PIDs are not listed on the datasheet and sit in the 882x Accessory Guide.

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  • CP-8821-EX-K9-BUN Datasheet