Cisco CP-6861-3PCC-K9 Full English Product Description

Listing Title

Cisco CP-6861-3PCC-K9 Multiplatform (3PCC) 4-Line Wireless Gigabit VoIP Desk Phone, Built-In 802.11 b/g/n Wi-Fi Connectivity, 3.2-inch 320×120 Backlit Grayscale LCD Screen with XML Application Support, Single 10/100/1000BASE-T Gigabit Ethernet Port (No PC Pass-Through), IEEE 802.11 Wi-Fi Certified, Full-Duplex HD Wideband Echo-Canceling Speakerphone, Dedicated RJ-9 Wideband Headset Port, Open-Standard SIP MPP Third-Party Call Control Firmware, SRTP/TLS Encrypted Secure Voice, Desktop & Wall Mountable, No Native PoE Support, Ideal for Remote Workers, Flexible Office Hotdesks, Small Business Staff, UCaaS & Third-Party SIP PBX Deployments Requiring Wireless Network ConnectivityCisco

Full Commercial Overview

The Cisco CP-6861-3PCC-K9 is a wireless-capable mid-tier multiplatform (MPP) VoIP desk phone within Cisco’s IP Phone 6800 Series product lineup. The suffix3PCCdenotes Third-Party Call Control, meaning the device runs pure open-standard SIP firmware independent of Cisco CUCM enterprise call managers, delivering full interoperability with Webex Calling, Broadworks, Asterisk, and all mainstream hosted SIP PBX and UCaaS platformsCisco.

The core differentiator separating the CP-6861 from other 4-line 6800-series models (CP-6841 wired Gigabit, CP-6851 expandable wired) is its integrated 802.11 b/g/n Wi-Fi radio, enabling cable-free voice deployments for hot-desking, remote home offices, flexible co-working spaces, and workstations without available wired Ethernet wall jacksCisco.

This model supports four independent SIP registrations, a high-resolution grayscale backlit LCD display, wired Gigabit Ethernet fallback connectivity, enterprise HD wideband audio, and robust encrypted SIP voice communications. Unlike CP-6841 and CP-6851, the CP-6861 features only a single Gigabit LAN port without secondary PC pass-through switching, and it doesnotsupport IEEE 802.3af PoE; power delivery relies entirely on the included external 5V DC AC power adapter. The CP-6861 also lacks compatibility with the Cisco 6800 Key Expansion Module (KEM), eliminating BLF expansion capability compared to the CP-6851 model.

All device provisioning, dial plan configuration, unattended bulk firmware upgrades and remote diagnostics are supported via TFTP, HTTP and HTTPS secure auto-provisioning. Basic local configuration adjustments can be completed directly through the backlit graphical LCD menu navigation without requiring a PC web portal, and the display supports customizable XML enterprise applications for corporate LDAP directories, internal announcements and custom business workflow toolsCisco.

Hardware, Display & Audio Architecture

1. Four Independent Programmable SIP Line Buttons

Four physical tricolor LED illuminated line keys on the left side of the display support up to four unique SIP registrations. Each line key enables multi-call-per-line appearance functionality to manage multiple concurrent calls, shared line monitoring and BLF extension status tracking. LED color coding indicates call state: solid green for idle line, solid red for active/held calls, flashing red for incoming ringing calls.

2. Graphical LCD Display & Physical Control Layout

• Display Panel: 3.2-inch grayscale backlit LCD screen with 320 × 120 pixel resolution, rendering caller ID name/number, real-time call duration timestamps, local call history logs, system menu navigation, Wi-Fi connection status, network time/date, XML corporate directory and application content, plus status icons for active headset, mute and DND modesCisco.
• Hard Key Layout & Navigation: Standard 12-key tactile numeric dial pad; dedicated fixed-function illuminated hard keys: Mute, Headset, Speakerphone, Volume Toggle, Central Four-Way Navigation Cluster with Select Button, Directory, Applications, Hold, Transfer, Conference and three context-sensitive LCD softkeys for dynamic call control workflows.
• LED Status Indicators: Backlight status LEDs on all line and function keys; dedicated vertical red Message Waiting Indicator (MWI) LED integrated on the handset cradle to notify users of unheard voicemail messages (solid red = new voicemail, flashing red = incoming call alert).

3. Integrated 802.11 b/g/n Wi-Fi Wireless Module

The CP-6861 features a built-in Wi-Fi Certified 802.11 b/g/n wireless radio, supporting 2.4GHz frequency band with WMM voice QoS prioritization for real-time VoIP media streams. Key wireless features:

• Supports up to 4 configurable independent Wi-Fi network profiles for multi-location roaming
• WPS Wi-Fi Protected Setup one-touch network pairing
• Comprehensive wireless security modes: WEP, WPA-PSK (TKIP), WPA2-PSK (AES), 802.1X enterprise authentication including PEAP-MSCHAPv2, EAP-FAST, EAP-TLS, PEAP-GTCCisco
• On-device wireless network SSID scanning capability via LCD menu
• Wi-Fi connection status monitoring displayed directly on the main LCD screen

4. Complete Wideband HD Audio Subsystem

• Ergonomic wired analog handset with noise isolation and native G.722 HD wideband audio support, connected via a standard RJ-9 modular port.
• Built-in full-duplex hands-free speakerphone with advanced acoustic echo cancellation, enabling simultaneous talk-and-listen conference-style calling without audio cut-off; automatic DTMF tone privacy masking activates during speakerphone operation.
• Dedicated RJ-9 wideband headset audio port fully compatible with Cisco 500 Series wired headsets and mainstream industry-standard office wired headsets.
• Supported Voice Codecs: G.711 A-law / µ-law, G.726, G.729A/B/AB, G.722 HD wideband voice, G.722.2, iSAC, ILBC, OPUS wideband audio codecs.
• Audio Optimization Technologies: Adaptive dynamic jitter buffer, Voice Activity Detection (VAD) silence suppression, Comfort Noise Generation (CNG); DTMF signaling transmitted via in-band audio or RFC 2833 out-of-band SIP INFO signaling.

5. Chassis & Mounting Specifications

Compact matte charcoal gray ABS plastic desktop chassis with a removable single-position foldable rear foot stand for stable desk or countertop placement. The foot stand can be fully detached to enable wall mounting, with pre-drilled standardized mounting holes located on the rear panel of the phone.

• Physical Dimensions (W × D × H): Standard desktop form factor matching the 6800 series chassis design
• Unit Weight: 602.8g excluding foot stand, handset and packaging; 670g including foldable foot stand, excluding handsetCisco
• Power Save Mode Support: Configurable low-power standby to reduce idle energy consumption for wireless deployments.

Network, Power & Hardware Interfaces

1. Single Gigabit Wired Ethernet Port (No PC Pass-Through)

One auto-sensing 10/100/1000BASE-T Gigabit RJ45 LAN port for fallback wired network connectivity; no secondary switched PC pass-through port (key difference from CP-6841/6851 models). Supported networking standards: Full IPv4 + IPv6 dual-stack RFC compliance suite, DHCP client for automatic IP addressing, DNS A/SRV resource record lookup, ARP, ICMP, TCP/UDP, RTP/RTCP voice media quality reporting, Layer 2 802.1p QoS traffic marking, voice VLAN 802.1Q tagging, STUN NAT traversal for remote/home office NAT network environments, SNTP network time synchronization, CDP and LLDP network device discovery protocols.

2. Power Supply Specifications (No Native PoE Support)

The CP-6861 does not support IEEE 802.3af PoE power delivery; power is exclusively supplied via an included universal AC-to-DC power adapter (5V DC output, 100–240VAC 50/60Hz global input). No alternative PoE injector accessory is officially supported for this wireless model.

3. Additional Physical Interfaces

• RJ-9 modular wired handset connector
• Dedicated RJ-9 wideband headset audio jack
• Recessed pinhole password-protected factory reset button for restoring default device configurations.

Core Business Telephony Feature Set

All calling functions can be configured via auto-provisioning templates, on-device LCD menu or triggered through standard SIP star feature access codes:

1. Four-Line Multi-Call Handling: Multi-call-per-line appearance support, per-line call waiting, call hold, music-on-hold, attended & blind call transfer, local three-way ad-hoc audio conferencing, call swap between active lines, automatic last number redial, on-hook dialing, global Do Not Disturb (DND) mode to suppress incoming ring alerts, call park and unpark functionality, shared line appearance monitoring.
2. Caller ID & Personalization: Caller ID name/number display on LCD, outbound caller ID blocking, anonymous call rejection, customizable distinctive ringtones configurable per line, programmable speed dial entries and local stored personal phone directory; LDAP corporate directory lookup via XML application framework.
3. Utility & Group Calling Features: One-touch intercom calling with auto-answer speakerphone mode, selective and group call pickup, call back on busy, system broadcast paging support.
4. Local Call Log Storage: Onboard storage for dialed, received and missed call records with timestamps and call duration data, fully viewable on the phone’s LCD screen or embedded web management portal.
5. Voicemail Integration: Native MWI voicemail notification via SIP SUBSCRIBE/NOTIFY messaging, dedicated one-touch Messages hard key for instant voicemail retrieval.

Security & Remote Management Capabilities

1. Voice & Signaling Encryption: SRTP (Secure Real-time Transport Protocol) up to 256-bit AES encryption for VoIP audio media streams, TLS encrypted SIP control signaling to prevent network call eavesdropping and malicious signaling interception.
2. Multi-Tier Device Access Security: Separate administrator and end-user permission levels protected by unique passwords; password-locked factory reset function to block unauthorized full configuration erasure.
3. Wireless Network Security: Full suite of enterprise wireless authentication and encryption standards (WEP, WPA2-PSK, 802.1X EAP enterprise modes) to protect wireless voice traffic from unauthorized interception.
4. Automated Provisioning & System Monitoring: Secure unattended remote firmware upgrades without interrupting active voice calls, centralized syslog event logging, built-in network diagnostic tools for IT administrators and small business telecom service providers; customizable XML enterprise application support for corporate directories and internal business services; RTCP-XR voice quality statistics reporting for network telephony performance auditing.

Environmental & Regulatory Specifications

• Regulatory Compliance Certifications: FCC Part 15 Class B electromagnetic interference compliance, UL / C-UL electrical safety certification, CE marking for European Union market compliance, A-Tick Australian telecommunications certification, HAC hearing aid compatibility certification, Wi-Fi Alliance Certified 802.11 b/g/n wireless radio certification.
• Operating Environment: Indoor use only Operating Temperature: 0°C ~ +40°C (32°F ~ 104°F) Storage Temperature: -10°C ~ +60°C (14°F ~ 140°F) Operating Humidity: 10% – 90%, non-condensing Storage Humidity: 10% – 95%, non-condensing
• Memory Architecture: Onboard flash memory for persistent firmware and configuration storage, dedicated SDRAM runtime memory for real-time multi-line call processing, wireless radio management, LCD menu rendering and embedded web server operation.
• Lifecycle Status: Active supported MPP multi-platform VoIP hardware with ongoing firmware maintenance, no official End-of-Life announcement as of 2026.
• Warranty: Standard one-year limited Cisco hardware warranty for commercial business end-user deployments.

Key Specification Bullet Points

• Model Number: Cisco CP-6861-3PCC-K9
• Device Type: Wireless Multiplatform 4-Line Open SIP VoIP Desk IP Phone (3PCC Third-Party Call Control MPP Firmware), Integrated 802.11 b/g/n Wi-Fi Radio, No KEM Expansion Support, No PoE
• Supported Telephony Protocols: Industry Standard SIP v2 (RFC 3261 Suite), MPP Multiplatform Firmware for third-party PBX / UCaaS compatibility
• Supported Voice Codecs: G.711 A/µ, G.726, G.729A/B/AB, G.722 HD Wideband Voice, G.722.2, iSAC, ILBC, OPUS
• Display: 3.2-inch backlit grayscale LCD screen, 320 × 120 pixel resolution, XML corporate directory/application support
• Wi-Fi Connectivity: Built-in Wi-Fi Certified 802.11 b/g/n (2.4GHz band), WPS pairing, up to 4 configurable wireless profiles, WMM QoS, WEP/WPA/WPA2/802.1X enterprise security
• Physical Buttons & Indicators: 4 programmable tricolor LED line keys, 12-key numeric dial pad, dedicated illuminated hard keys for Mute, Headset, Speakerphone, Volume, Navigation Cluster, Directory, Applications, Hold, Transfer, Conference; standalone red handset cradle MWI voicemail waiting LED
• Expansion Compatibility: No support for Cisco 6800 Key Expansion Module (KEM)
• Physical Audio Interfaces: RJ-9 handset port, dedicated RJ-9 wideband headset jack, built-in full-duplex echo-canceling HD speakerphone, HAC hearing-aid compatible handset
• Ethernet Interfaces: Single auto-sensing 10/100/1000BASE-T Gigabit LAN port (WAN fallback only, no PC pass-through secondary switch port)
• Power: No native IEEE 802.3af PoE support; powered exclusively via included 5V DC universal AC power adapter
• Mounting Method: Removable foldable desktop foot stand as standard; wall-mount capable via rear chassis mounting holes
• Supported QoS & Networking: 802.1p Layer 2 QoS marking, voice VLAN 802.1Q tagging, DHCP client, STUN NAT traversal, SNTP time sync, CDP/LLDP network device discovery, WMM wireless voice prioritization
• Security Features: TLS encrypted SIP signaling, SRTP AES encrypted voice media, enterprise-grade Wi-Fi authentication & encryption, dual-level admin/user password lock, HTTPS embedded web management, password-protected factory reset
• Core Call Features: 4-line multi-call-per-line concurrent call support, call waiting, hold, attended/blind transfer, three-way conference, BLF extension busy lamp field monitoring, caller ID blocking, anonymous call rejection, intercom, group call pickup, speed dial, LCD-accessible local call logs, DND silent mode, voicemail MWI notification, call park/unpark, shared line appearance, LDAP directory lookup via XML
• Management Tools: Embedded web admin interface, local LCD menu configuration, TFTP/HTTP/HTTPS auto remote provisioning, syslog event logging, unattended remote in-service firmware upgrades, customizable XML enterprise application support, RTCP-XR voice quality reporting
• Deployment Scenarios: Remote home office telephony setups, office hot-desking flexible workstations, co-working spaces, small business staff desks without wired Ethernet wall jacks, third-party SIP PBX / Webex Calling / Broadworks UCaaS environments requiring cable-free wireless VoIP connectivity
• Lifecycle Status: Active supported MPP wireless IP phone, no official EOL/EoS announcement
• Warranty: One-year limited Cisco hardware warranty

Model Quick Reference

• CP-6861-3PCC-K9 is the wireless flagship 4-line multi-platform open SIP phone of Cisco 6800 MPP Series; the "3PCC" suffix denotes third-party open SIP firmware, fully separate from CUCM-locked SCCP enterprise variants.
• Core positioning: Wireless cable-free business VoIP endpoint built exclusively for open SIP PBX and hosted UCaaS platforms, offering four SIP registrations, integrated 802.11 b/g/n Wi-Fi, single Gigabit fallback wired port, high-resolution grayscale LCD screen.
• Key differentiators vs other 4-line 6800-series models:
  1. CP-6841: Wired dual Gigabit ports (PC pass-through), no Wi-Fi, no KEM expansion
  2. CP-6851: Wired Gigabit ports, no Wi-Fi, supports KEM expansion for BLF keys
  3. CP-6861: Built-in Wi-Fi wireless radio, single Gigabit port (no PC pass-through), no KEM expansion, no PoE support
• Primary deployment advantage: Integrated Wi-Fi radio eliminates wired Ethernet cabling requirements for hotdesks, remote workers and flexible office spaces; fallback Gigabit wired LAN provides reliable backup connectivity for high-priority voice traffic.
• Compatible with all standard SIP hosted PBX platforms and Webex Calling via open MPP 3PCC SIP firmware.