Cisco Desk Phone 9871 (DP-9871-K9) - 5" HD Touchscreen IP Phone | PoE | Wi-Fi | Bluetooth - New

The Cisco Desk Phone 9871 (DP-9871-K9) is a flagship enterprise VoIP desk phone built for executives, hybrid workers, and call-intensive office environments. It features a 5-inch 1280x720 HD color touchscreen, integrated Bluetooth 5.2, dual-band Wi-Fi 802.11ac (2.4/5 GHz), and dual Gigabit Ethernet ports. Powered by PoE over a single Ethernet cable — no PoE switch? A Cisco Power Adapter 3 is required and sold separately. Tested and certified for Cisco Webex Calling, Cisco Unified Communications Manager (CUCM), BroadWorks, and Asterisk, with Open SIP interoperability for third-party platforms.

Cisco Desk Phone 9871 - Key Features & Benefits

• Power: PoE or Adapter (Sold Separately): Powered by IEEE 802.3at Class 3 PoE over a single Ethernet cable — no power brick needed on a PoE network. For non-PoE deployments or Wi-Fi-only use, the Cisco Power Adapter 3 (CP-PWR-ADPT-3-NA=) must be purchased separately — it is not included
• 5" HD Color Touchscreen: 1280x720 backlit display delivers a smartphone-like interface with dedicated Action, Favorite, Hold/Resume, Transfer, Conference, Application, Directory, and Home buttons for fast call handling
• Up to 16 SIP Lines (Most Deployments): Supports up to 16 SIP lines on Webex Calling and Open SIP platforms — the most common cloud and third-party setups. On Cisco CUCM and Webex Dedicated Instance, the phone scales much higher for large enterprise deployments
• AI-Based Noise Removal & Wideband HD Audio: AI noise removal on both sending and receiving sides, narrowband-to-wideband audio enhancement for PSTN calls, full-duplex speakerphone, and Cisco HD audio (TIA-810/920 and ETSI ES 202 737/738/739/740 compliant)
• Wi-Fi 5 & Bluetooth 5.2: Dual-band 802.11a/b/g/n/ac Wi-Fi with WPA3/WPA2-Enterprise, plus Bluetooth 5.2 (Class 1, EDR, BLE) for wireless headsets, HFP/A2DP/HID/PBAP profiles
• Dual Gigabit Ethernet: Two internal 10/100/1000BASE-T ports (IEEE 802.3i/802.3u/802.3ab) for the phone and a co-located PC via a single cable drop
• Enterprise-Grade Security: Trusted Platform Module (TPM) 2.0, Secure Boot, TLS 1.3, SRTP, FIPS 140-2/140-3 and UCR 2013 compliant, SIP OAuth, 802.1x supplicant, and Security-Enhanced Linux
• Sustainable Design & ENERGY STAR: Built with over 74% post-consumer recycled (PCR) plastic, ENERGY STAR certified, 100% recyclable packaging, and supports deep sleep and display-off modes for Cisco Smart Power Framework

Cisco Desk Phone 9871 - Technical Specifications

• Manufacturer: Cisco
• Part Number: DP-9871-K9 • Color: Carbon Black
• Product Type: Enterprise IP Desk Phone with Touchscreen
• Display: 5" Color Touch LCD, 1280 x 720 resolution, backlit
• SIP Lines: Up to 16 on Webex Calling / Open SIP • Scales higher on CUCM / Webex DI
• Power: IEEE 802.3at Class 3 PoE • Cisco Power Adapter 3 sold separately (not included)
• Ethernet: 2x 10/100/1000BASE-T (RJ-45), internal 2-port switch
• Wi-Fi: 802.11a/b/g/n/ac, 2.4 GHz / 5 GHz dual band (WPA/WPA2/WPA3)
• Bluetooth: 5.2 (Class 1, EDR, BLE) • HFP / A2DP / HID / PBAP
• USB Ports: 1x USB-A • 1x USB-C
• Audio Codecs: OPUS, G.722, G.722.2, iSAC, G.711 (a-law/µ-law), G.729a/b, iLBC
• Security: TPM 2.0 • TLS 1.3 • SRTP • FIPS 140-2/140-3 • SE Linux • Secure Boot
• Handset: Wideband-capable, HAC (Hearing Aid Compatible), RJ-9 connector
• Dimensions (H x W x D): 8.9 x 8.4 x 1.9 in (226 x 214 x 49.4 mm)
• Weight: 1055 g (2.33 lb)
• Operating Temp: 32 to 104°F (0 to 40°C)
• Certifications: ENERGY STAR • EU Lot-6/Lot-26 • FCC Part 15/68 • CE
• Condition: New

Cisco Desk Phone 9871 - Frequently Asked Questions (FAQ)

• Does this come with a power adapter?
  No. This phone is designed to be powered by PoE (IEEE 802.3at Class 3) over the Ethernet cable — no adapter needed on a PoE-enabled switch. If your network does not support PoE, you must order the Cisco Power Adapter 3 (CP-PWR-ADPT-3-NA= for North America) separately. It is not included in the box.
• How many SIP lines does it support?
  The 9871 supports up to 16 SIP lines on Webex Calling and Open SIP — the most common deployments. On Cisco CUCM and Webex Dedicated Instance, the phone supports well over 100 lines for large enterprise setups. If you are on Webex Calling, plan for the 16-line limit.
• Which calling platforms does this phone support?
  Tested and certified for Cisco Webex Calling, Cisco Unified Communications Manager (CUCM 12.5 or above), Webex Dedicated Instance, Cisco BroadWorks, and Asterisk. Also supports Open SIP interoperability with third-party platforms and is Microsoft SIP Gateway compatible.
• What's the difference between DP-9871-K9 and DP-9871NR-K9?
  The DP-9871-K9 is the standard model with Wi-Fi and Bluetooth enabled. The DP-9871NR-K9 ("No Radio") has Wi-Fi and Bluetooth disabled at the hardware level for secure environments that prohibit wireless radios. This listing is for the standard DP-9871-K9 with wireless enabled.
• Can I add key expansion modules?
  Yes. The 9871 supports up to three Cisco DP-9800-KEM modules (sold separately), each adding 20 programmable keys across 2 pages. Running three KEMs requires the Cisco Power Adapter 3 for proper power delivery.

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