All phones come individually boxed with a handset, ethernet cable and curly cord
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The Cisco 8851 IP Phone with Multiplatform Firmware (CP-8851-3PCC-K9) is to provide enterprises with enterprise-grade, adaptable and secure unified communications. This cutting-edge VoIP phone, which combines an eye-catching 5-inch widescreen color display with user-friendly navigation, is designed for smooth interaction with third-party SIP platforms, making daily call handling simple and effective. With support for a large number of cloud and hosted PBX providers, the multiplatform firmware allows compatibility beyond Cisco's own solutions, making it perfect for businesses moving to open SIP or hybrid environments.
The Cisco 8851 guarantees crystal-clear discussions in busy office environments with its wideband audio, full-duplex speakerphone and sophisticated noise reduction. Personalized, effective communications are at your fingertips thanks to built-in Bluetooth, a USB connector for tethered or wireless headsets and support for up to five programmed lines. PoE-enabled dual gigabit Ethernet ports optimize desktop productivity and simplify network integration. Sensitive information is safeguarded by the phone's strong security architecture, which includes cutting-edge encryption, while user comfort and quick adoption are promoted by the ergonomic design and customisable keys.
• 5-inch Color Display with high-resolution, 800x480 pixels, 24-bit color screen for easy navigation and crystal-clear visuals.
• Multiplatform SIP Compatibility with fully supports third-party call control systems, including Broadsoft, Asterisk and others—perfect for open SIP deployments.
• Five Programmable Line Keys with flexible handling for multiple SIP accounts, speed dials and advanced call features.
• Wideband Audio & Full-Duplex Speakerphone delivers exceptional HD voice quality with dynamic noise reduction and echo cancellation.
• Bluetooth 3.0 & USB Support with native wireless headset integration and a USB port for charging mobile devices or connecting headsets.
• Dual Gigabit Ethernet Ports with PoE streamlines cabling and provides high-speed network and PC pass-through connectivity.
• Integrated Headset Port (RJ9) with easy plug-and-play support for professional wired headsets.
• Expansion Module Support adds up to two key expansion modules for high call volumes.
• Advanced Security Features with encrypted voice signaling, device authentication and secure firmware for enterprise-level protection.
• Ergonomic Design with adjustable stand, backlit keys and wall-mountable flexibility for diverse workspace layouts.
🗹 Open multiplatform firmware connects with most SIP-based UCaaS and hosted PBX providers, ensuring smooth migration and scalability for growing organizations.
🗹 Wideband audio and robust acoustic technology foster clear, natural conversations—minimizing workplace distractions and errors.
🗹 Five programmable lines and customizable soft keys streamline multitasking, call handling and everyday operations for busy professionals.
🗹 Bluetooth and USB support enable flexible headset choices and mobile device charging—ideal for dynamic workstations.
🗹 Encrypted communications, secure firmware and device authentication safeguard sensitive calls and data from evolving cyber threats.
🗹 PoE simplifies installation, while multiplatform support reduces IT overhead and re-training costs.
🗹 Large, high-resolution screen and intuitive phone interface reduce learning curves and improve user satisfaction from day one.
🗹 Compatible with key expansion modules and supports advanced SIP features to grow alongside your business.
| Manufacturer | Cisco |
| Manufacturer Part Number | CP-8851-3PCC-K9 |
| Product Name | Cisco 8851 IP Phone with Multiplatform Firmware |
| Product Type | IP Phone |
| Body Colour | Charcoal |
| Body Material | ABS plastic |
| Wireless Interface Provided | Bluetooth |
| Bluetooth Profiles | Hands-Free Profile (HFP), Phonebook Access Profile (PBAP) |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Key Expansion Module Max Qty | 2 |
| Dialer Type | Keypad |
| Dialer Location | Base |
| Conference Call Capability | Yes |
| Speakerphone | Yes |
| Programmable Buttons Qty | 5 |
| Indicators | Voice message waiting indicator, speakerphone indicator, headset |
| Firmware Upgradable | Yes |
| Additional Functions | Call timer, Intercom |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP | Yes |
| VoIP Protocols | SIP, RTCP, RTP, SRTP, SDP |
| Voice Codecs | G.722, G.729a, G.711u, G.711a, iLBC, iSAC |
| Lines Supported | 5 lines |
| Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p |
| Security | IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | IP, TFTP, UDP, Cisco Discovery Protocol (CDP), HTTP, DNS, HTTPS, SRTP, Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Network Features | Class 3 PoE |
| Type | LCD display - colour |
| Display Location | Base |
| Diagonal Size | 5" |
| Display Resolution | 800 x 480 pixels |
| Colour Depth | 24-bit (16.7 million colours) |
| Backlit | Yes |
| Connections | Headset jack / RJ-9 ¦ Electronic hook switch (EHS) ¦ USB |
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table mount |
| Width | 25.734 cm |
| Depth | 4 cm |
| Height | 22.91 cm |
| Weight | 1.19 kg |