DP-9811-K9 – 2-Line Desk Phone – 10/100 LAN Pass-Through – PoE Class 2 Entry Model
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DP-9811-K9 Description
The DP-9811-K9 is a Cisco Desk Phone 9811, the entry-level model of the Desk Phone 9800 Series, for individual desks with basic calling needs. The phone has a 2.6-inch grayscale LCD at 256 x 132, 2 physical line keys, a built-in 2-port 10/100BASE-T Ethernet switch and IEEE 802.3af/at PoE Class 2 power. The phone has no USB port, no TPM 2.0 chip and no support for the 9800 Key Expansion Module, and it requires Cisco Unified Communications Manager 14 or later.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
DP-9811-K9 |
|
Endpoint role |
Entry-level Cisco Desk Phone 9800 Series SIP desk phone |
|
Display |
2.6-in grayscale LCD, 256 x 132 pixels |
|
Line keys |
2 physical line keys, 2-line/programmable key maximum |
|
LAN switch |
Built-in 2-port 10/100BASE-T Ethernet switch with PC pass-through |
|
Power |
IEEE 802.3af/at PoE Class 2; Cisco Power Adapter 3 optional for local power |
|
Call control compatibility |
Cisco Unified Communications Manager 14.0 or later, Webex Calling, Webex Dedicated Instance, Cisco BroadWorks |
|
Security |
SUDI protected by the onboard SoC; no TPM 2.0 module |
Application Scenarios
At a private office or knowledge-worker desk, the phone serves as a single-user extension, with 2 line keys and a narrowband handset covering routine calling.
On floors still cabled for 10/100 Ethernet, the phone connects at the existing speed and passes a PC through its second port without a cabling upgrade.
In a wiring closet feeding rows of basic desk phones, the phone’s PoE Class 2 draw keeps the load on a shared access switch budget low across a large port count.
Product Comparison
|
Parameter |
DP-9811-K9 | ||
|---|---|---|---|
|
Display |
2.6-inch grayscale LCD, 256 x 132 |
3.5-inch backlit grayscale LCD, 384 x 160 |
3.7-inch backlit color LCD, 480 x 240 |
|
Physical line keys |
2 |
4 |
6 |
|
Line and programmable key capacity |
2 |
4 |
46 |
|
Ethernet |
2-port 10/100BASE-T |
2-port 10/100/1000BASE-T |
2-port 10/100/1000BASE-T |
|
USB port |
No USB port |
1x USB-A |
1x USB-A, 1x USB-C |
|
Key expansion |
Not supported |
Not supported |
1 Key Expansion Module |
|
Power over Ethernet |
IEEE 802.3af/at, Class 2 |
IEEE 802.3af/at, Class 2 |
IEEE 802.3af/at, Class 3 |
|
Hardware security module |
Not equipped (SUDI protected by SoC) |
TPM 2.0 |
TPM 2.0 |
|
Minimum unified CM release |
14 |
12.5 |
12.5 |
DP-9811-K9 is the entry model of this group: it has 2 line keys, a 10/100BASE-T pass-through port and no TPM 2.0 chip, while DP-9841-K9 has 4 line keys, a 10/100/1000BASE-T port and TPM 2.0 at the same PoE Class 2 draw. A desk that passes a gigabit PC connection through the phone, or needs TPM 2.0, moves to DP-9841-K9. More than 4 lines or any Key Expansion Module needs DP-9851-K9, the first model here with module support and 46 lines, at PoE Class 3. DP-9811-K9 also requires Unified CM 14 or later, so a cluster still on 12.5 registers DP-9841-K9 or DP-9851-K9 instead.
Ordering Checklist
- Power source: Add Cisco Power Adapter 3 in the regional PID, such as CP-PWR-ADPT-3-NA= or CP-PWR-ADPT-3-EU=, for desks without PoE. The phone draws PoE Class 2 and does not ship with a power adapter.
- TAA or Customized build: Order DP-9811-K9++= for TAA or DP-9811-K9–= for Customized, in place of DP-9811-K9=, since these builds are separate PIDs.
- Wall mount: Add DP-9800-WMK= for wall-mounted installs; the kit is a separate accessory.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | DP-9811-K9 | Endpoint role | Entry-level SIP desk phone, Cisco Desk Phone 9800 Series |
| Display | 2.6-in grayscale LCD, 256 x 132 pixels | Line keys | 2 physical line keys, 2-line/programmable key maximum |
| Controls | Action button (up to 3 configurable scenarios), Favorite, Hold/Resume, Transfer, Application, standard keypad, volume, headset/mute/speaker keys, 2-way navigation with Select | Status indicator | Front Arc LED for call, message, and missed-call status |
| LAN interface | Built-in 2-port 10/100BASE-T Ethernet switch with PC pass-through | VLAN tagging | IEEE 802.1Q tagging for separate phone and PC VLANs |
| Handset | Narrowband handset included by default; wideband handset from other Desk Phone 9800 Series models is compatible as a separate order; HAC hearing-aid compatible, FCC Part 68 and ADA compliant | Speakerphone | Full-duplex hands-free speakerphone |
| Headset jack | RJ-9 wired headset interface | Audio codecs | OPUS, G.722, G.722.2, iSAC, G.711 a-law/u-law, G.729a/b, iLBC |
| Auxiliary port | One Auxiliary port for console log capture only | Wireless connectivity | No Wi-Fi, Bluetooth, or NFC |
| USB port | No USB port | Key expansion module compatibility | Not compatible with the 9800 Key Expansion Module |
| Security | Secure Boot, signed image authentication, SUDI protected by the onboard SoC (no TPM 2.0 module) | Signaling encryption | TLS 1.3 signaling with configurable minimum version |
| Media encryption | SRTP media encryption | Network protocols | SIP signaling, IPv4/IPv6, DHCP or static addressing, 802.1x (EAP-FAST/EAP-TLS), LLDP-MED, CDP, HTTPS, RTP/RTCP |
| Compliance certifications | FIPS 140-2/140-3, UCR 2013, Security-Enhanced Linux | Call control compatibility | Cisco Unified Communications Manager 14.0 or later, Webex Calling, Webex Dedicated Instance, Cisco BroadWorks |
| Webex feature exceptions | Hot desking, OBTP one-touch join, Webex Companion, hybrid calendar, VPN, and NFC onboarding are not supported on this SKU | Power input | IEEE 802.3af/at PoE Class 2, 0.42A at 48V DC rated input |
| Local power option | Cisco Power Adapter 3, region-specific PID ordered separately (not included) | Low-power states | Deep sleep 0.37W on local power / 0.54W on PoE; display-off mode not available on this SKU |
| Operating environment | 0 to 40°C, 10-90% relative humidity, non-condensing | Dimensions | 209.0 x 200.0 x 49.4 mm (8.2 x 7.9 x 1.9 in) |
| Weight | 849 g | Sustainability | Plastic parts exceed 77% post-consumer recycled content, the highest in the series; EnergyStar certified; EU Lot-6/Lot-26 compliant |
| Packaging | 100% recyclable packaging, single-unit box 28.1 x 23.6 x 7.2 cm at 1.3 kg, 8 units per overpack | Accessibility | Voice Feedback in English, French, Italian, German, and Spanish; adjustable on-screen font size |
| Language support | Approximately 40 languages, including Simplified and Traditional Chinese, English, French, German, Spanish, Japanese, and Korean |
Get More Information
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Questions & Answers
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How is DP-9811-K9 classified?
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How many line keys and display pixels does DP-9811-K9 provide?
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Does DP-9811-K9 support Gigabit Ethernet pass-through?
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Which call-control release is required for DP-9811-K9?
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Which power methods can operate DP-9811-K9?
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What security hardware protects DP-9811-K9 device identity?
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How does DP-9811-K9 differ from DP-9841-K9?
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When is DP-9811-K9 unsuitable for a desk deployment?
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