Cisco 9841 IP Desk Phone (DP-9841-K9) | Refresh
This Phone Supports Webex Calling
Cisco Refresh offers fully remanufactured, Cisco Certified products with SmartNet eligibility (OEM Refurbished).
Clean Serial: YES
This Phone Supports Webex Calling
Cisco Refresh offers fully remanufactured, Cisco Certified products with SmartNet eligibility (OEM Refurbished).
Clean Serial: YES
The Cisco 9841 IP Desk Phone (DP-9841-K9) is a cutting-edge VoIP phone designed for the collaborative and hybrid work environments of today. Whether working from home, the workplace or a shared workspace, the 9841 offers a smooth communication experience because to its design, which prioritizes dependability, security and user-friendliness. For busy professionals, this phone's 3.5-inch illuminated grayscale LCD display, four customizable line keys and support for up to 16 SIP lines guarantee clear visibility and effective conversation handling.
With its seamless integration with Cisco Unified Communications Manager (CUCM), Webex Calling, BroadWorks and third-party cloud calling platforms, the 9841 is built on Cisco's PhoneOS platform. The phone's sophisticated audio technology, which supports wideband codecs and AI-powered noise reduction, allows for crystal-clear conversations even in busy settings. Accessibility and productivity are enhanced with the 9841's full-duplex speakerphone, USB-A connection for plug-and-play headset connectivity and compatibility with hearing aids.
With the Cisco 9841, security and sustainability are paramount. For secure end-to-end communications, it has a Trusted Platform Module (TPM) 2.0, TLS 1.3 and SRTP encryption. It is certified ENERGY STAR and has a chassis composed of 74% post-consumer recycled plastic. The device is perfect for modern, flexible workplace deployments since it enables one-button-to-join (OBTJ) for Webex meetings, hot desking and desk reservation.
• 3.5-inch Backlit Grayscale LCD with 384 x 160 resolution for clear call information and easy navigation.
• Supports Up to 16 SIP Lines with four programmable line keys with tri-color LED indicators for versatile call handling.
• Advanced Audio Technology with AI noise removal, wideband codec support (Opus, G.722, G.729, iLBC, G.711) and bass-enhanced speakerphone for HD voice quality.
• Integrated 2-Port Gigabit Ethernet Switch that ensures seamless network connectivity and easy device integration.
• USB-A Port for plug-and-play USB headset or Bluetooth dongle connectivity and device charging.
• Hot Desking & Desk Reservation that personalize devices in shared environments for flexible workspace management.
• One Button to Join (OBTJ) that instantly join Webex meetings from the phone’s interface.
• Robust Security with Trusted Platform Module (TPM) 2.0, TLS 1.3, SRTP encryption, FIPS 140-2 compliance.
• Sustainable Design tht constructed from 74% post-consumer recycled plastic and ENERGY STAR certified.
• Hearing Aid Compatible (HAC) that is accessible for all users.
🗹 Four programmable line keys and intuitive interface streamline handling multiple calls, transfers and conferencing.
🗹 AI-powered noise removal and HD voice codecs ensure every conversation is crisp and natural, even in open offices.
🗹 Hot desking, desk reservation and broad platform compatibility support hybrid work and shared office models.
🗹 One-touch meeting access, USB headset support and customizable action buttons keep teams connected and efficient.
🗹 End-to-end encryption and TPM 2.0 safeguard sensitive communications and data.
🗹 ENERGY STAR certification and recycled materials reduce environmental impact and operating costs.
🗹 Hearing aid compatibility and multi-language support make the 9841 inclusive for diverse teams.
🗹 Regular updates, robust hardware and Cisco’s renowned reliability ensure long-term value for any organization.
Manufacturer | Cisco |
Manufacturer Part Number | DP-9841-K9-RF |
Product Name | Cisco 9841 IP Desk Phone |
Product Type | VoIP Phone |
Compatible Platforms | Cisco BroadWorks, Asterisk, Cisco Webex Calling, Cisco Webex Dedicate Instance (DI) |
Integrated Components | Trusted Platform Module (TPM) 2.0 |
Weight | 33.65 oz |
Body Color | Carbon black |
Body Material | ABS polycarbonate, 74% post-consumer recycled plastic |
Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Call park/pickup |
Caller ID Type | Caller ID/call waiting |
Dialer Location | Base |
Conference Call Capability | Yes |
Speakerphone | Yes |
Programmable Buttons Qty | 4 |
Volume Control | Yes |
Indicators | Speakerphone indicator, line status indicator, headset, mute indicator, busy lamp field (BLF), status, select indicator |
Additional Functions | Call recording, mute, Music on hold, Do not disturb, conference mode, Kensington security slot, sleep mode, QR code access, one button to join (OBTJ) |
Main Features | Integrated Ethernet switch |
VoIP | Yes |
VoIP Protocols | SIP, RTCP, RTP, SRTP, SDP |
Voice Codecs | G.722, G.729a, iLBC, G.729b, iSAC, G.722.2, Opus, G.711a-law, G.711μ-law |
Lines Supported | 4 lines |
Quality of Service | IEEE 802.1Q (VLAN) |
IP Address Assignment | DHCP, static |
Security | IEEE 802.1X, EAP-TLS, EAP-FAST, FIPS 140-2, SRTP, TLS 1.3 |
Power Over Ethernet (PoE) Support | Yes |
Network Protocols | TFTP, Cisco Discovery Protocol (CDP), DNS, HTTPS, Link Layer Discovery Protocol (LLDP), Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP, GARP, IPv6, IPv4, DHCP, VLAN |
Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
Compatible Software | Cisco WebEx, Cisco Unified Communications Manager |
Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), silence suppression, HD audio, acoustic shock protection, dual tone multi-frequency (DTMF), forward error correction (FEC), ultrasonic support |
Network Features | Class 2 PoE |
Type | LCD display - grayscale |
Display Location | Base |
Diagonal Size | 3.5" |
Display Resolution | 384 x 160 pixels |
Backlit | Yes |
Display Languages | Danish, Hungarian, Czech, Chinese (traditional), Chinese (simplified), Ukrainian, Brazilian Portuguese, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Catalan, Japanese, Korean, UK English, US English, French Canadian, Spanish (Columbia), Chinese (Traditional, Hong Kong) |
Connections | Headset jack / RJ-9 ¦ 2 x network / RJ-45 ¦ USB / 4 pin USB Type A ¦ Console |
Hearing Aid Compatible | Yes |
Placing / Mounting | Desktop |
Cables Included | Network cable |
ENERGY STAR Certified | Yes |
Power Consumption | 2.35 W (power adapter, display off mode), 1.95 W (PoE, display off mode), 0.25 W (power adapter, deep sleep mode), 0.61 W (PoE, deep sleep mode) |
Width | 8.4 in |
Depth | 8.4 in |
Height | 1.9 in |
Weight | 33.65 oz |