CP-8821-K9 – 8821 Wireless IP Phone – Device Only – 802.11a/b/g/n/ac VoWLAN
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CP-8821-K9 Description
CP-8821-K9 is the Cisco Wireless IP Phone 8821 World mode device-only handset for Cisco VoWLAN and Cisco Unified Communications Manager environments. It supports IEEE 802.11a/b/g/n/ac wireless operation, SIP signaling, six line appearances, a 2.4-inch color display, built-in full-duplex speakerphone, Bluetooth headset support, and a 3.5 mm headset jack, while its IP54 and MIL-STD-810G drop/vibration ratings fit mobile voice users in warehouses, retail floors, healthcare spaces, and other workplace WLAN deployments.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
CP-8821-K9 |
|
Cisco ordering description |
Cisco Wireless IP Phone 8821 World mode device ONLY |
|
Product type |
Cisco wireless IP phone handset |
|
Bundle scope |
Device-only order line |
|
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 |
|
Access point support |
Cisco unified AP minimum 8.0.121.0, Cisco autonomous AP minimum 12.4(21a)JY, and Cisco Meraki APs |
|
Display |
2.4 in. color display, 240 x 320 pixels |
|
Protection and durability |
IP54 rating with MIL-STD-810G drop and vibration procedures |
|
Battery specification |
Rechargeable Lithium ion 4.35V, 2060mAh smart battery |
|
Audio and headset |
Built-in full-duplex speakerphone, Bluetooth headset support, and 3.5 mm headset jack |
Application Scenarios
Use CP-8821-K9 when the bill of materials needs the Cisco Wireless IP Phone 8821 handset as a separate device-only line and the buyer is planning battery and regional power items outside the base SKU.
Fit this SKU into Cisco Unified Communications Manager, SRST, Unified CME, or HCS voice environments that need a wireless SIP handset with 802.11a/b/g/n/ac WLAN support and Cisco access point compatibility.
Select CP-8821-K9 for regular 8821 deployments where the IP54 ruggedized phone profile is the documented requirement and the EX hazardous-location certifications are not part of the order.
Product Comparison
|
Parameter |
CP-8821-K9 |
CP-8821-EX-K9= | |
|---|---|---|---|
|
Cisco orderable item |
World mode device only |
World mode device only |
World mode device only |
|
Included Cisco components |
Device only |
Device only |
Device only |
|
Wireless standards |
IEEE 802.11a/b/g/n/ac |
IEEE 802.11a/b/g/n/ac |
IEEE 802.11a/b/g/n/ac |
|
Ingress protection |
IP54 |
IP67 ordinary-location rating and IP54 hazardous-location use |
IP67 ordinary-location rating and IP54 hazardous-location use |
|
Hazardous-location support |
Not listed for the regular 8821 data sheet |
US/Canada CSA Class I Division 2 and Class I Zone 2; ATEX Zone 2 Group IIC listed as pending |
US/Canada CSA Class I Division 2 and Class I Zone 2; ATEX Zone 2 Group IIC listed as pending |
|
Display |
2.4 in. color display, 240 x 320 pixels |
2.4 in. color display, 240 x 320 pixels |
5 in. 800 x 480 24-bit color WVGA display |
|
Talk time |
Up to 11.5 hours depending on firmware and charger version |
Up to 9.5 hours voice calling |
Up to 9.5 hours voice calling |
|
Phone technology license |
Required for Cisco IP phones |
Required for Cisco IP phones |
Required for Cisco IP phones |
- In a CP-8821-K9 vs CP-8821-K9-BUN comparison, the main difference is included components: CP-8821-K9 is the device-only order line, while CP-8821-K9-BUN includes the battery and regional AC power components.
- The CP-8821-K9 vs CP-8821-EX-K9= difference is the model boundary. CP-8821-K9 is the regular 8821 device-only SKU with IP54 protection, while CP-8821-EX-K9= belongs to the 8821-EX family with hazardous-location certifications.
- For buyers deciding which model to choose, the CP-8821-K9 comparison should start with bundle scope, then confirm whether the site needs the EX certification profile. CP-8861-K9 is included as an additional same-family comparison point.
Selection Guide
1. Choose CP-8821-K9 for a device-only 8821 order
Select CP-8821-K9 when the quote needs the Cisco Wireless IP Phone 8821 World mode device-only SKU and separate accessory planning is already covered.
2. Use CP-8821-K9-BUN for a bundled 8821 order
Move to CP-8821-K9-BUN when the Cisco order line must include the 8821 device plus battery, power cord, power adapter, and country clip.
3. Use CP-8821-EX-K9= only for EX requirements
Specify CP-8821-EX-K9= when the deployment requires the documented 8821-EX hazardous-location certifications instead of the regular 8821 IP54 handset.
4. Match the voice and wireless baseline before approval
Verify phone technology license coverage, call-control release, supported Cisco access point baseline, and wireless security method before adding the device-only SKU to the order.
Ordering Checklist
|
Check Item |
What to Verify |
Why It Matters |
|---|---|---|
|
Device-only PID |
The Cisco line is CP-8821-K9= for the 8821 World mode device only |
Keeps the order from drifting to the CP-8821-K9-BUN bundle or to an EX handset |
|
Accessory coverage |
Battery and AC power needs are covered by separate Cisco items such as CP-BATT-8821= and the appropriate regional CP-PWR-8821 power supply |
Makes the missing bundle components visible before the handset is released to purchasing |
|
Voice entitlement |
A phone technology license is included in the voice licensing plan |
Avoids treating the handset hardware as the complete Cisco calling entitlement |
|
Call-control release |
The deployment uses a supported CUCM, SRST, Unified CME, or HCS release for the 8821 |
Confirms the device-only phone belongs on the current voice platform baseline |
|
WLAN support path |
The site has 802.11a/b/g/n/ac WLAN coverage and a Cisco unified, autonomous, or Meraki AP path supported for this phone |
Prevents a handset order from being separated from the wireless infrastructure requirement |
|
Security and roaming profile |
Authentication, encryption, and roaming requirements match the Cisco-documented 8821 capabilities |
Keeps EAP method, AES support, 802.11r, and CCKM assumptions out of post-order cleanup |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | CP-8821-K9 | Cisco ordering ID | CP-8821-K9= |
| Cisco ordering description | Cisco Wireless IP Phone 8821 World mode device ONLY | Product type | Cisco wireless IP phone handset |
| Bundle comparison SKU | CP-8821-K9-BUN includes the device, battery, power cord, power adapter, and country clip | EX comparison SKU | CP-8821-EX-K9= is Cisco Wireless IP Phone 8821-EX World mode device only |
| 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 |
| QoS support | IEEE 802.11e, Wi-Fi Multimedia, TSPEC, TCLAS, EDCA, and QBSS | Signature support | SHA-1 and SHA-2 signature types |
| Display | 2.4 in. color display with 240 x 320 pixel resolution | Application support | XML applications such as push-to-talk |
| 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 specification | Rechargeable Lithium ion 4.35V, 2060mAh smart battery | Battery runtime | Up to 11.5 hours talk time, up to 145 hours auto-scan standby, or up to 45 hours continuous-scan standby |
| Input power | Phone 100 to 240 VAC, approximately 0.2A, 50 to 60 Hz, with AC adapters by region | Connector | Magnetic USB 2.0 On The Go connector |
| Ingress protection | IP54 | Drop and vibration | MIL-STD-810G Drop and Vibration procedures; multiple 5 ft drops onto concrete |
| Dimensions | Phone 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 | Device 14 to 122 degrees F (-10 to 50 degrees C) | Relative humidity | 10% to 95%, noncondensing |
| Operating altitude | Certified operation from 0 to 6500 ft (0 to 2 km) | Phone technology license | Required for all Cisco IP phones |
Get More Information
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Questions & Answers
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What is CP-8821-K9?
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Who is CP-8821-K9 built for?
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How is CP-8821-K9 different from CP-8821-EX-K9-BUN?
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What wireless design matters for CP-8821-K9?
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Why do CP-8821-K9 calls drop while roaming?
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Can CP-8821-K9 replace all desk phones?
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What security planning applies to CP-8821-K9?
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Which CP-8821-K9 ordering details matter?
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