Cisco CP-6945-K9 Full English Product Description

Listing Title

Cisco CP-6945-K9 Unified Four-Line Gigabit IP Desk Phone (Dual SCCP/SIP Dual Protocol), White-Backlit Monochrome 396×162 Anti-Glare LCD Display, Dual 10/100/1000BASE-TX Gigabit Switched Ethernet Ports with PC Pass-Through, IEEE 802.3af Class 1 PoE Powered, G.722 HD Wideband Full-Duplex Echo-Canceling Speakerphone, Dedicated Hold / Transfer / Conference Fixed Hard Keys, RJ9 Analog Headset Port, HAC Hearing-Aid Compatible Handset, Configurable Deep Sleep Energy-Saving Mode, Recyclable Eco-Friendly PC-ABS Chassis, Charcoal Black Standard Handset Base Model, Two-Position Adjustable Desktop Stand or Wall Mountable, Ideal for Office Managers, High-Volume Administrative Staff, Retail Supervisors, Clinic Multi-Line Reception Desks and Medium-to-High Traffic Four-Line Business VoIP Deployments

Full Commercial Overview

The Cisco CP-6945-K9 is the high-performance flagship four-line VoIP endpoint within Cisco Unified IP Phone 6900 Series, built for enterprise office users requiring multi-line capacity, high-speed Gigabit LAN passthrough, HD wideband audio and unified voice-video collaboration support. It natively supports dual telephony protocols: proprietary SCCP (Skinny Client Control Protocol) for Cisco Unified Communications Manager (CUCM)/UCME, and open SIP v2 for interoperability with third-party SIP PBX and UCaaS platforms.

The core differentiator separating CP-6945 from the CP-6941 four-line model is itsdual Gigabit Ethernet portsinstead of Fast Ethernet, enabling full gigabit-speed data passthrough for connected desktop PCs without network bandwidth bottlenecks. It retains all premium features of the CP-6941 while upgrading wired network throughput for modern office workstations requiring high data transfer rates.

Multiple customizable SKU variants are available for flexible deployment:

1. CP-6945-K9 / CP-6945-C-K9: Base charcoal black chassis with standard curved handset
2. CP-6945-W-K9: Arctic white chassis variant for modern bright office interiors
3. CP-6945-CL-K9: Charcoal black chassis with slimline lightweight compact handset

Eco-conscious design elements are integrated throughout the unit, including reground recyclable polycarbonate ABS (PC-ABS) plastic construction and a configurable Deep Sleep power-saving mode that cuts idle power consumption by up to 50% during off-hours to reduce long-term energy costs. Cisco Video Advantage PC video collaboration is fully supported when paired with a desktop PC and compatible USB camera, delivering unified voice-and-video communications for enterprise users.

All configuration, mass remote provisioning and unattended bulk firmware upgrades are managed via TFTP/HTTP/HTTPS secure auto-provisioning servers and an embedded HTTPS web administration portal, with centralized device monitoring fully compatible with CUCM and third-party SIP PBX management platforms. This phone has reached End-of-Sale (EoS) status as of October 6, 2022, classified as legacy collaboration hardware with only critical security bug maintenance support remaining.

Hardware & Physical Design Architecture

1. Ergonomic Chassis & Flexible Mounting Options

• Form factor: Low-profile desktop body equipped with a two-position adjustable foldable foot stand for optimized LCD viewing angles. The foot stand is fully removable to enable direct wall mounting without extra wall-mount accessory kits, with standardized pre-drilled mounting holes on the rear panelCisco.
• Chassis material: Reground recyclable PC-ABS polycarbonate plastic; base CP-6945-K9 ships in matte charcoal black finishCisco.
• Handset variants: Standard ergonomic coiled handset included as default; slimline lightweight handset available via separate SKU CP-6945-CL-K9.
• Physical Dimensions (H × W × D): 164mm × 188mm × 205mm (6.4 × 7.4 × 8.1 in.)Cisco
• Unit Weight: Standard handset version 1102g (39 oz); slimline handset variant 1039g (37 oz)Cisco
• Operating Environment (Indoor Only): Operating Temperature: 0°C ~ +40°C (32°F ~ 104°F) Storage Temperature: -10°C ~ +60°C (14°F ~ 140°F) Operating Humidity: 10% – 95% non-condensing

2. Key Layout, LCD Display & Control Hardware

The CP-6945 features a high-resolution white-backlit monochrome anti-glare LCD screen paired with dedicated fixed function hard keys for core call workflows and four tricolor LED line keys for visual line status indication:

1. Backlit monochrome LCD display: 396 × 162 pixel resolution, anti-glare surface, adjustable brightness, multi-language and right-to-left text support; scrollable screen content for Caller ID, call timers, local directory, call logs, XML enterprise applications, line status and voicemail alerts.
2. Four tricolor LED illuminated line keys: Visual state signaling (solid green = idle line; solid red = active/held call; flashing red = incoming ringing call) for four independent DNs.
3. Three dedicated one-touch fixed function hard keys: Hold, Transfer, Conference for instant call control without menu navigation.
4. Standard 12-key tactile numeric dial pad (0–9, *, #).
5. Four context-sensitive softkeys positioned below the LCD screen, dynamically mapped to on-screen menu options.
6. Central five-way navigation rocker with select button for scrolling menus, directories and call logs.
7. Auxiliary dedicated hard keys: Mute, Headset, Volume Up/Down, Redial, End Call.
8. Vertical red Message Waiting Indicator (MWI) LED on the top edge of the chassis to alert users of unheard voicemail messages.

3. Premium HD Wideband Audio Subsystem & Supported Codecs

• Ergonomic analog handset with noise isolation receiver, certified HAC (Hearing-Aid Compatible) to meet accessibility standards for users with hearing assistive devices.
• Built-in full-duplex echo-canceling hands-free speakerphone optimized for HD wideband voice clarity in busy office environments.
• RJ9 modular analog headset port for connecting third-party wired office headsets.
• Supported voice audio encode/decode codecs: G.722 HD wideband audio, G.711a / G.711u, G.729a, G.729ab, iLBC low-bitrate codec.
• Voice quality optimisation features: Voice Activity Detection (VAD), Comfort Noise Generation (CNG) to eliminate silent line background noise during idle calls.

Network, Power & Hardware Interfaces

1. Dual 10/100/1000BASE-TX Gigabit Switched RJ45 Ports

Two auto-sensing Gigabit Ethernet ports with integrated mini network switch, the key hardware upgrade over CP-6941 Fast Ethernet design, delivering full gigabit-speed data passthrough for connected workstations:

• Primary WAN Network Port: Connects the IP phone to corporate Gigabit LAN switches, VoIP gateways or SIP PBX appliances for SIP/SCCP control signaling and RTP voice media traffic.
• Secondary PC Pass-Through Port: Enables direct connection of desktop PCs, laptops or POS terminals to the corporate Gigabit network through the phone, eliminating the need for separate wall-mounted Gigabit RJ45 jacks.

Supported networking standards: IPv4 + IPv6 dual-stack addressing (DHCP dynamic IP assignment or static manual IP configuration), Cisco Discovery Protocol (CDP), LLDP-MED device discovery, 802.1Q voice VLAN tagging, 802.1p Layer 2 QoS traffic prioritization, STUN NAT traversal, SNTP network time synchronization.

2. Dual Power Supply Options (Class 1 PoE Primary Power)

1. Native IEEE 802.3af Class 1 Power over Ethernet support (primary power source): Maximum typical power consumption: Low energy draw optimized for continuous operation; configurable Deep Sleep mode reduces idle power usage by up to 50% during off-hours. Input rating: 48V DC PoE input from compliant PoE network switches.
2. Optional external 48V DC universal AC-to-DC power cube (sold separately, part number CP-PWR-CUBE-3=) for non-PoE network environmentsCisco.

3. Rear Panel Physical Interfaces

1. RJ9 modular handset jack for connecting coiled handset cord
2. Dual Gigabit 10/100/1000BASE-TX RJ45 switched PoE ports (Network + PC pass-through)
3. RJ9 analog headset port
4. DC 48V auxiliary power input jack for optional external power adapter
5. Recessed pinhole password-protected factory reset button to restore all device configuration to factory default values

Core Telephony Feature Set

All calling and configuration functions are provisioned via CUCM / third-party SIP PBX auto-provisioning templates; routine operations are triggered via dedicated physical hard keys or LCD softkey navigation:

1. Four-Line Multi-Call Handling Supports four independent directory number (DN) line registrations with multi-call-per-line appearance, enabling multiple concurrent active calls per line. Dedicated Hold key for call park, dedicated Transfer and Conference hard keys for one-touch consultation transfer and three-way ad-hoc audio conference calls. Supports call swap between multiple active calls, automatic last-number redial via dedicated Redial key.
2. Caller ID & Personalization Features Visual Caller ID name/number displayed on the backlit LCD screen; adjustable ringtone volume and multiple selectable ringtone tones, customizable unique ring alert patterns per line. On-device local directory storage with search functionality, plus XML framework support for corporate LDAP directory lookup.
3. Utility Workplace Calling Functions One-touch redial, mute for confidential conversations, headset mode toggle, shared line appearance monitoring support for multi-user shared reception lines, call forward, call park and call pickup functionality, intercom auto-answer calling for internal staff communication.
4. Local Call Log Storage Onboard persistent storage for dialed outgoing calls, received answered calls and missed incoming calls, complete with timestamp, call duration and full Caller ID details; all logs fully viewable directly on the phone’s LCD screen or embedded web management portal.
5. Voicemail MWI Integration Native Message Waiting Indicator (MWI) notification via SIP/SCCP SUBSCRIBE/NOTIFY messaging; steady red chassis LED illumination plus on-screen LCD pop-up alerts to notify users of unheard voicemail messages.
6. Supported Security Call Features Anonymous incoming call rejection, outbound caller ID blocking via server-side configuration, encrypted SIP/SCCP call control signaling (TLS) and encrypted voice media streams (SRTP) for enterprise secure communications deployments.
7. Unified Voice-Video Collaboration Native Cisco Video Advantage support for desktop video calling when connected to a PC with compatible USB camera, enabling integrated voice and video communications for enterprise users.

Security & Remote Device Management Capabilities

1. End-to-End Encrypted Communications TLS transport layer encryption for SCCP/SIP call control signaling; SRTP AES encrypted RTP voice media streams to prevent call audio interception on shared office LAN networks.
2. Multi-Tier Access Permission Controls Separate administrator and end-user access privilege levels protected by unique authentication passwords; password-locked factory reset function to block unauthorized wiping of device configuration and line registration data.
3. Centralized Auto-Provisioning & Firmware Upgrades Unattended remote bulk firmware upgrades via TFTP/HTTP/HTTPS secure auto-provisioning servers, fully compatible with CUCM and third-party SIP PBX platforms. Embedded HTTPS web-based administration interface for local device configuration and real-time status monitoring.
4. System Monitoring & Diagnostics Real-time device status tracking via CUCM / SIP PBX management consoles, including online/offline connectivity status, line registration state, active call session auditing and centralized syslog event logging for network telephony audit trails.

Environmental & Regulatory Compliance Certifications

• Regulatory EMI/EMC: FCC Part 15 Class B electromagnetic interference compliance, CE marking for European Union markets, ICES-003 Class B certification
• Safety certifications: UL / C-UL 60950 electrical safety certification, EN 60950 IEC global electrical safety standard
• Telecom regulatory approvals: FCC Part 68 telecom terminal device certification, TIA 810A HAC hearing aid compatibility standard
• Memory architecture: 8MB flash memory for persistent firmware and configuration storage; 32MB SDRAM runtime memory for SCCP/SIP call processing, LCD rendering and network stack operation
• Lifecycle Status: Discontinued End-of-Sale legacy MPP VoIP hardware (EoS date Oct 6, 2022), limited critical security bug maintenance support only with no new feature firmware development
• Warranty: Standard one-year limited Cisco hardware warranty for commercial business end-user deployments

Key Specification Bullet Points

• Model Number: Cisco CP-6945-K9 (Charcoal Black Standard Handset); CP-6945-W-K9 (White Chassis); CP-6945-CL-K9 (Slimline Lightweight Handset Variant)
• Device Type: High-Performance Four-Line Unified Gigabit IP VoIP Desk Phone (Dual Native SCCP / SIP Dual Protocol), White-Backlit High-Res Monochrome LCD Display, Dual Gigabit Switched Ethernet Ports with PC Pass-Through
• Supported Telephony Protocols: SCCP (Skinny Client Control Protocol) for Cisco CUCM / UCME; SIP v2 open standard for third-party SIP PBX / UCaaS platforms
• Supported Voice Audio Codecs: G.722 HD Wideband Audio, G.711a / G.711u, G.729a, G.729ab, iLBC Low Bitrate Codec
• Display: White-Backlit Monochrome LCD Screen, 396 × 162 Pixel Resolution, Anti-Glare Surface, Multi-Language & Right-to-Left Text Support
• Fixed Hardware Function Keys: Dedicated Hold, Redial, Transfer, Conference, Mute, Headset Hard Keys; Four Dynamic LCD Softkeys, Five-Way Navigation Rocker
• Audio Features: HAC Hearing-Aid Compatible Handset Receiver, Full-Duplex Echo-Canceling HD Wideband Speakerphone, VAD Voice Activity Detection, CNG Comfort Noise Generation, RJ9 Analog Headset Port
• Physical Interfaces: 1 x RJ9 Handset Port, Dual 10/100/1000BASE-TX Gigabit Switched PoE Ports (Network + PC Pass-Through), RJ9 Headset Jack, 48V DC Aux Power Input Jack, Password-Protected Factory Reset Pinhole
• Power Specifications: IEEE 802.3af Class 1 PoE Primary Power, Configurable Deep Sleep Energy-Saving Mode; Optional Separate 48V DC Universal AC Power Cube (Sold Separately)
• Mounting Method: Two-position adjustable removable foldable desktop foot stand as standard; Wall mountable without additional wall mount kit via rear pre-drilled holes
• Supported QoS & Networking Features: IPv4 + IPv6 Dual Stack, DHCP/Static IP Assignment, CDP/LLDP-MED Device Discovery, 802.1Q Voice VLAN Tagging, 802.1p Layer 2 QoS Prioritization, STUN NAT Traversal, SNTP Network Time Synchronization
• Security Features: TLS Encrypted SCCP/SIP Call Signaling, SRTP AES Encrypted Voice Media Streams, Dual-Level Admin/User Password Access Control, Password-Locked Factory Reset, Embedded HTTPS Web Administration Interface
• Core Telephony Call Features: Four Independent SIP/SCCP Line Registrations, Multi-Call-Per-Line Appearance, Supports Multiple Concurrent Calls + Call Waiting, Dedicated Hold / Redial / Transfer / Conference Hard Keys, Full-Duplex HD Wideband Speakerphone, Visual LCD Caller ID Display, MWI Voicemail Message Waiting LED Alert, Anonymous Call Rejection, Outbound Caller ID Blocking, Shared Line Appearance Support, Call Forward, Call Park & Call Pickup, Local Call Log Storage, XML LDAP Corporate Directory Lookup, Cisco Video Advantage PC Voice-Video Collaboration Support
• Management Tools: TFTP/HTTP/HTTPS Secure Remote Auto-Provisioning, Unattended Bulk Remote Firmware Upgrades, Embedded Web-Based Local Admin Portal, CUCM / Third-Party SIP PBX Centralized Device Monitoring, Syslog Event Logging & Built-In Network Diagnostics
• Target Deployment Scenarios: Small and medium business office managers and high-volume administrative staff desks, retail store supervisory back-office workstations, clinic and dental practice multi-line reception counters, medium-to-high-traffic four-line office voice deployments, hotel administrative staff multi-line phones, unified voice-video enterprise office environments requiring Gigabit LAN passthrough capability
• Lifecycle Status: Discontinued End-of-Sale legacy Gigabit four-line IP phone hardware (EoS October 6, 2022)
• Warranty: One-year limited Cisco hardware warranty

Model Quick Reference

• CP-6945-K9 is the flagship four-line high-speed Gigabit IP phone of Cisco Unified IP Phone 6900 Series, supporting dual SCCP/CUCM and open SIP third-party PBX protocols, designed for enterprise office users requiring four multi-call lines and full Gigabit data passthrough for connected workstations.
• Core positioning: Premium four-line business VoIP endpoint with high-resolution backlit monochrome graphical LCD display, differentiated from the CP-6941 four-line model by dual Gigabit Ethernet ports (instead of Fast Ethernet) for high-bandwidth desktop PC connectivity, while retaining all premium audio, video collaboration and enterprise telephony features.
• Key internal series differentiation vs other 6900 series models:
  1. CP-6901: Single line, no LCD display, no dedicated Transfer/Conference keys, ringtone-only speaker
  2. CP-6911: Single line, no LCD display, dual Fast Ethernet PC pass-through, dedicated Transfer/Conference keys, full-duplex speakerphone
  3. CP-6921: Two independent multi-call lines, lower-resolution backlit LCD (396×81), dual Fast Ethernet PC pass-through, no video collaboration support
  4. CP-6941: Four independent multi-call lines, high-res LCD, dual Fast Ethernet ports, video collaboration support
  5. CP-6945: Four independent multi-call lines, identical high-res LCD as CP-6941, upgraded dual Gigabit Ethernet ports for high-speed PC passthrough, all premium audio/video/telephony features retained
• Primary deployment advantage: Balanced high multi-line productivity and high-speed wired network performance for managers and busy administrative staff, combining four independent multi-call lines, sharp high-resolution LCD visual call management, dual Gigabit switch eliminating extra Gigabit wall jacks for office PCs, dedicated call control hard keys simplifying routine transfer/conference workflows, energy-efficient PoE operation with Deep Sleep power saving mode, flexible desktop/wall mounting and native Cisco Video Advantage unified voice-video communications support for enterprise office deployments.