Cisco 6851 IP Phone - Corded, Wall Mountable, Desktop - Charcoal

The Cisco 6851 IP Phone is a durable, corded voice device built for today’s fast-paced workplaces. Designed to deliver crisp, natural-sounding conversations, this desk phone is ideal for busy reception areas, front-desk teams, and collaborative workspaces that rely on reliable, scalable communications. Equipped with Multiplatform Phone (MPP) firmware, it integrates smoothly with Cisco Unified Communications Manager (CUCM) and a wide range of UCaaS services, helping organizations reduce operating costs while enhancing person-to-person collaboration. Its compact, wall-mountable form factor keeps desks uncluttered, while the charcoal finish offers a professional look that blends with modern office aesthetics. Whether deployed in a single-user setup or extended to multiple locations, the Cisco 6851 is engineered to deliver high-fidelity audio, easy provisioning, and dependable performance across your communications ecosystem.

• Crystal-clear audio for every conversation: Wideband voice, acoustic echo cancellation, noise reduction, and a full-duplex speakerphone deliver natural sound for calls, conferences, and collaborative sessions.
• Multiplatform Phone (MPP) firmware for seamless integration: The MPP firmware enables robust interoperability with Cisco collaboration tools and approved UCaaS platforms, ensuring consistent performance and easy feature access across endpoints.
• Flexible mounting options for any space: Designed for desktop use or wall mounting, making it suitable for reception desks, break rooms, classrooms, and space-constrained work areas.
• Reliable connectivity and power options: Dual Ethernet ports with PoE support streamline installation and reduce cable clutter, helping to keep networks secure and uptime high.
• Secure provisioning and easy administration: Centralized provisioning, secure signaling, and enterprise-grade security features simplify management and reduce IT overhead.

Technical Details of Cisco 6851 IP Phone

• Form factor: Corded IP phone designed for desk use with optional wall mounting
• Firmware: Multiplatform Phone (MPP) firmware for reliable UC integrations
• Display: High-contrast, easy-to-read color display for rapid access to features
• Connectivity: Dual Ethernet ports with support for Power over Ethernet (PoE)
• Audio: Wideband voice with full-duplex speakerphone and headset compatibility
• Power: PoE-capable or compatible with optional power adapter
• Security: Enterprise-grade security, secure provisioning, and encrypted signaling
• Compatibility: Designed to work with Cisco UC ecosystems and a broad range of approved UCaaS solutions
• Mounting: Desktop and wall-mount capable to adapt to various workspace layouts

How to install Cisco 6851 IP Phone

• Prepare your workspace: Choose a stable, accessible location on a desk or mount point on a wall using the included bracket.
• Unbox and verify: Confirm you have the handset, base, wall-mount kit, Ethernet cable, and quick-start guide in the package.
• Connect the device: Plug the Ethernet cable into the Cisco 6851 and connect the other end to a PoE-enabled switch or power adapter if PoE is unavailable.
• Provision the phone: Allow the device to obtain network settings via DHCP or configure it manually to enroll with your CUCM or approved UCaaS provider using the MPP provisioning workflow.
• Configure preferences and test: Set up language, ringer, volume levels, call forwarding, speed dials, and Bluetooth or headset options if applicable; place a test call to verify audio quality and connectivity.

Frequently asked questions

• Q: Is the Cisco 6851 IP Phone compatible with UCaaS providers? A: Yes. The Cisco 6851 uses Multiplatform Phone (MPP) firmware to integrate with Cisco collaboration tools and many approved UCaaS services, providing flexible deployment across on-premises and cloud-based environments.
• Q: Can I mount the Cisco 6851 on a wall? A: Absolutely. The design includes a wall-mount option, enabling space-saving placement in reception areas, training rooms, or shared workspaces while preserving desk space for other equipment.
• Q: What kind of network connectivity does it offer? A: The phone provides dual Ethernet ports with PoE support, simplifying network wiring and allowing power to be delivered over the same cable as data where PoE is available.
• Q: Does the 6851 support headset use? A: Yes. The device is headset-compatible and supports traditional handsets, speakerphone, and wired headsets for flexible call handling.
• Q: How is security managed on this phone? A: The Cisco 6851 includes enterprise-grade security features, including support for secure provisioning and encrypted signaling to protect communications and administrative configurations.
• Q: What makes the 6851 suitable for teams and front-line staff? A: Its reliable audio, straightforward provisioning, flexible mounting, and compatibility with UCaaS and Cisco collaboration tools make it ideal for desks, reception counters, classrooms, and multi-user environments where clear communication matters.