Overview
Overview of Cisco 9841 IP Desk Phone (DP-9841-K9) | New
The Cisco 9841 IP Desk Phone (DP-9841-K9) is a robust and adaptable communication tool for current office situations. This elegant carbon black IP phone combines modern calling functions with seamless integration capabilities, making it a great solution for organizations of any size. The Cisco 9841 runs PhoneOS, which provides a user-friendly interface and connectivity with a variety of platforms, including Cisco Unified Communications Manager (CUCM), Webex Calling, and Broadworks. With its high-quality audio technology and unique features, this desk phone boosts productivity and collaboration in today's hybrid work environments.
Key Features of Cisco 9841 IP Desk Phone
• 3.5-inch backlit grayscale LCD display for clear information viewing
• Advanced audio with wideband codec and AI noise removal technology
• Four programmable line keys for customizable access to features
• Built-in 2-port Gigabit Ethernet switch for network connectivity
• Supports desk reservation and hot desking for flexible office environments
• One Button to Join (OBTJ) functionality for quick meeting access
• Integrated Trusted Platform Module (TPM) 2.0 for enhanced security
• Constructed with 74% post-consumer recycled plastic for sustainability
• Full-duplex speakerphone with acoustic clarity technology
• USB-A port for headset connectivity and charging options
• Supports multiple VoIP protocols including SIP, RTCP, and RTP
• Advanced security features including TLS 1.3 and SRTP encryption
• ENERGY STAR certified for improved energy efficiency
• Compatible with Cisco Webex and third-party cloud calling platforms
• Supports up to 4 lines with expanded functionality for various use cases
Specifications
Specifications for Cisco 9841 IP Desk Phone (DP-9841-K9) | New
Manufacturer | Cisco |
Manufacturer Part Number | DP-9841-K9 |
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 |