Cisco CP-7902G Full English Product Description

Listing Title

Cisco CP-7902G Unified Single-Line IP Desk Phone (SCCP / Dual Protocol SIP Support), No Graphical LCD Display, Single 10/100BASE-TX Fast Ethernet Uplink Port, IEEE 802.3af Pre-Standard & Standard PoE Powered, Monitor-Only Speaker for Call Audio, Dedicated Hold / Redial / Transfer / Conference / Voicemail Fixed Hard Keys, HAC Hearing-Aid Compatible Handset, Compact Matte Charcoal ABS Chassis, Desktop Single-Angle Foot Stand or Wall Mountable, Ideal for Building Lobbies, Factory Production Floors, Laboratory Workspaces, Hallways, Break Rooms and Low-Traffic Single-Line Auxiliary VoIP Deployments

Full Commercial Overview

The Cisco CP-7902G is an entry-level cost-optimized single-line IP phone within the Cisco Unified IP Phone 7900 Series portfolio, engineered exclusively for basic voice communication in shared low-traffic public and industrial spaces where advanced multi-line or desktop productivity features are unnecessary.

This device supports dual telephony protocols: proprietary SCCP (Skinny Client Control Protocol) for on-prem Cisco Unified CallManager / CUCM Express deployments, and open SIP v2 for interoperability with third-party SIP PBX and SRST fallback voice gatewaysCisco.

Core Differentiators vs Other 7900 Series Models

1. No graphical LCD screen: Status feedback relies entirely on LED indicators and audio ringtone cadence, eliminating display hardware cost and simplifying maintenance for industrial/lobby deployments.
2. Monitor-only speaker: The built-in speaker only outputs incoming ringtone and passive call monitoring audio; it does not support full-duplex hands-free two-way conversation, a key distinction from higher-tier 7912G/7942G models.
3. Single Fast Ethernet uplink port only: No secondary PC pass-through switch port, as auxiliary shared spaces rarely require workstation daisy-chaining capabilities.
4. Minimal fixed function key layout: Dedicated one-touch keys for essential core call functions (Hold, Redial, Transfer, Conference, Voicemail) without programmable BLF line keys or expanded shortcut banksCisco.
5. Dual PoE compatibility: Supports both Cisco pre-standard inline power and official IEEE 802.3af Class 0 PoE for broad compatibility with legacy and modern Cisco Catalyst switchesCisco.

The unit features a compact matte charcoal recyclable ABS plastic chassis, a single-position foldable desktop foot stand for basic ergonomic viewing, and integrated rear mounting cutouts for direct wall installation without separate wall-mount accessory kits. The phone has reached End-of-Sale (EoS) status as of May 22, 2006, with limited critical security bug maintenance support only; Cisco recommends the CP-7906G as the direct hardware replacement model. All remote mass provisioning, unattended bulk firmware upgrades and centralized device monitoring are supported via TFTP auto-provisioning servers and embedded web administration interfaces, fully integrated with CUCM and Cisco Unified SRST fallback voice gateways.

Hardware & Physical Design Architecture

1. Compact Chassis & Mounting Options

• Form factor: Small low-profile desktop body equipped with a single-position fixed foldable foot stand for basic desk placement; the foot stand can be fully detached to enable vertical wall mounting via integrated rear chassis cutouts, with no additional wall mount kit required.
• Chassis material: Matte charcoal black recyclable polycarbonate ABS plastic, scratch-resistant for heavy shared-space industrial and lobby usage.
• Physical Dimensions (W × D × H, excluding handset): 176.7mm × 152mm × 203.2mm (7 × 6 × 8 inches)Cisco.
• Total Unit Weight (including standard coiled handset): 0.9 kg (1.9 lbs)Cisco.
• 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% – 95% non-condensing Storage Humidity: 10% – 95% non-condensing

2. Key Layout, Indicator LEDs & Control Hardware

The CP-7902G omits a graphical LCD screen entirely; all user interaction is managed via tactile fixed function hard keys and dedicated status LED indicators:

1. Single tricolor LED illuminated line status indicator: Visual real-time single-line state signaling (solid green = idle line; flashing green = incoming ringing call; solid red = call placed on hold).
2. Five dedicated one-touch fixed function hard keys for core call workflows: Hold, Redial, Transfer, Conference, Voicemail Message Access for instant operation without multi-layer menu navigation.
3. Standard 12-key tactile numeric dial pad (0–9, *, #) with rounded high-contrast tactile keys for easy operation in noisy industrial environments.
4. Central Menu navigation key: Provides access to local device configuration settings for system administratorsCisco.
5. Dedicated Volume control toggle rocker: Adjustable decibel output for handset receiver audio and incoming ringtone volume levels.
6. Vertical red Message Waiting Indicator (MWI) LED on the top chassis edge to alert users of unheard voicemail messages, with persistent steady red illumination until voicemail retrieval.
7. Built-in passive monitor speaker: Only supports ringtone playback and one-way call audio monitoring; no microphone input for two-way hands-free conference calling.

3. Audio Subsystem & Supported Voice Codecs

• Ergonomic analog coiled handset with noise-isolating receiver, certified HAC (Hearing-Aid Compatible) to meet ADA global accessibility standards for users wearing hearing assistive devicesCisco.
• Passive monitor-only built-in speaker: Delivers ringtone alert audio and one-way call listening; lacks integrated microphone hardware and echo cancellation circuits for full-duplex hands-free conversation.
• Supported voice audio encode/decode codecs for SCCP/SIP media streams: G.711a-law, G.711mu-law, G.729a low-bitrate codec.
• Voice quality optimization features: Voice Activity Detection (VAD), Comfort Noise Generation (CNG) to eliminate artificial silent line background noise during idle call periods.

Network, Power & Hardware Interfaces

1. Single 10/100BASE-TX Fast Ethernet Uplink RJ45 Port

One auto-sensing Fast Ethernet uplink port for connecting the IP phone to corporate LAN switches, VoIP gateways or CUCM voice servers for SCCP/SIP call control signaling and RTP voice media data streams. No secondary PC pass-through switch port is integrated into the hardware design, eliminating workstation daisy-chaining functionality.

Supported networking standards: IPv4 addressing only (DHCP dynamic IP assignment or static manual IP configuration), Cisco Discovery Protocol (CDP), LLDP device discovery, 802.1Q voice VLAN tagging, 802.1p Layer 2 QoS traffic prioritization, STUN NAT traversal for remote branch industrial workspace deployments, SNTP network time synchronization. The phone fully supports Cisco Unified SRST SIP fallback registration for WAN connectivity failure disaster recoveryCisco.

2. Dual Power Supply Options (Pre-Standard / IEEE 802.3af PoE Primary Power)

1. Native dual-compatibility Power over Ethernet support (primary power source): Compatible with both legacy Cisco pre-standard inline power and official IEEE 802.3af Class 0 PoE network switches, enabling centralized network power management for industrial and lobby deployments. Input rating: 48V DC PoE power input from all compliant Cisco Catalyst PoE switches.
2. Optional external 48V DC universal AC-to-DC power cube (sold separately, part number CP-PWR-CUBE-2=) for non-PoE network environments lacking PoE-enabled switchesCisco.

3. Rear Panel Physical Interfaces

1. RJ9 modular handset jack for connecting the coiled handset cord
2. Single RJ45 10/100 Fast Ethernet PoE uplink port for LAN network connection
3. DC 48V auxiliary power input jack for optional external AC power adapter
4. Recessed pinhole password-protected factory reset button to restore all device firmware and configuration settings to factory default values

Core Telephony Feature Set

All calling and device configuration functions are provisioned via CUCM / Cisco Unified SRST / third-party SIP PBX auto-provisioning templates; routine call operations are triggered via dedicated physical hard keys or Menu navigation key access to local device settings:

1. Single-Line Multi-Call Handling Supports one independent directory number (DN) line registration with multi-call-per-line appearance, enabling multiple concurrent active calls on the single shared auxiliary line plus native call waiting functionality. Dedicated Hold key for call park, dedicated Transfer and Conference hard keys for one-touch consultative transfer and three-way ad-hoc audio conference calls. Supports call swap between multiple active calls, automatic last-number redial via dedicated Redial key. Shared line appearance monitoring support for multi-user shared lobby/factory auxiliary voice lines.
2. Caller ID & Personalization Features Incoming Caller ID name/number delivered via distinct ringtone cadence patterns (no visual LCD text display); adjustable ringtone volume and multiple selectable distinct ringtone tone options, customizable unique ring alert patterns for internal vs external incoming calls. Local device configuration menu accessible via central Menu key for volume, ringtone and network parameter adjustments. Basic local speed dial number programming capability via web user options portal or local menu settings.
3. Auxiliary Workplace Calling Functions One-touch redial, persistent MWI voicemail indicator LED, call forward all/busy/no answer routing rules configurable via CUCM/SIP PBX server-side settings, call park and call pickup functionality, intercom auto-answer calling for cross-factory internal staff coordination, toll bar call blocking override support for authorized emergency outbound calling.
4. Local Call Log Storage Onboard persistent flash memory storage for dialed outgoing calls, received answered calls and missed incoming calls; call history data viewable only via the phone’s local text menu system or embedded web administration portal, as no graphical LCD screen is available for on-device visual log browsing.
5. Voicemail MWI Integration Native Message Waiting Indicator (MWI) notification delivered via SCCP/SIP SUBSCRIBE/NOTIFY messaging; steady red chassis MWI LED illumination to notify users of unheard voicemail messages, with dedicated one-touch Voicemail hard key for immediate voicemail portal retrieval access.
6. Supported Security Call Features Anonymous incoming call rejection, outbound caller ID blocking configurable via PBX/server-side settings, end-to-end encrypted SCCP/SIP call control signaling (TLS) and encrypted voice media streams (SRTP AES encryption) for secure confidential auxiliary workspace voice communications.

Security & Remote Device Management Capabilities

1. End-to-End Encrypted Voice & Signaling Communications TLS transport layer encryption for all SCCP/SIP call setup and control signaling; SRTP AES encrypted RTP voice media data streams to prevent unauthorized wired or wireless call audio interception on shared industrial and lobby corporate network infrastructures.
2. Multi-Tier Access Permission Controls Separate administrator and end-user access privilege levels protected by unique alphanumeric authentication passwords; password-locked factory reset function to block unauthorized wiping of shared auxiliary line registrations, speed dial configuration data and network provisioning parameters.
3. Centralized Auto-Provisioning & Unattended Firmware Upgrades Fully unattended remote bulk firmware upgrades pushed via TFTP secure auto-provisioning servers, fully compatible with CUCM, CUCM Express and Cisco Unified SRST SIP fallback voice gateways. Embedded HTTPS web-based local administration portal for on-site device configuration and real-time single-line registration status monitoring.
4. System Monitoring & Built-In Network Diagnostics Real-time device status tracking available via CUCM / Cisco Unified SRST management consoles, including online/offline LAN connectivity status, single SCCP/SIP line registration state, active call session auditing and centralized syslog event logging for complete industrial/lobby network telephony audit trails; integrated built-in ping diagnostic tool for local LAN connectivity troubleshooting.

Environmental & Regulatory Compliance Certifications

• Regulatory EMI/EMC: FCC Part 15 Class B electromagnetic interference compliance, CE marking per EU EMC directive, AS/NZS CISPR22 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, speed dial and network configuration storage; 32MB SDRAM runtime memory for SCCP/SIP call processing and network stack operation.
• Lifecycle Status: Announced End-of-Sale (EoS) May 22, 2006, Cisco CP-7906G designated as direct hardware replacement model; limited critical security/bug maintenance support only, no new feature firmware development.
• Warranty: Standard one-year limited Cisco hardware warranty for commercial industrial, hospitality and business end-user deployments.

Key Specification Bullet Points

• Model Number: Cisco CP-7902G (Matte Charcoal Black Single-Line Unified IP Phone; No alternate white chassis variant available)
• Device Type: Entry-Level Single-Line Unified IP VoIP Desk Phone (Dual Native SCCP / SIP Dual Protocol), No Graphical LCD Display, Single Fast Ethernet PoE Uplink Port, Monitor-Only Passive Speaker (No Two-Way Hands-Free Call Support)
• Supported Telephony Protocols: SCCP (Skinny Client Control Protocol) for Cisco CUCM / UCME; SIP v2 open standard for third-party SIP PBX / Cisco Unified SRST Fallback Voice Gateways
• Supported Voice Audio Codecs: G.711a / G.711u, G.729a Low Bitrate Codec
• Display: No Graphical LCD Screen; Call Status Feedback via Tricolor Line LED and Red MWI Voicemail Indicator LED
• Fixed Hardware Function Keys: Dedicated Hold, Redial, Transfer, Conference, Voicemail Access Hard Keys; Central Menu Navigation Key, Volume Adjustment Toggle Rocker, Standard 12-Key Numeric Dial Pad
• Audio Features: HAC Hearing-Aid Compatible Handset Receiver, Monitor-Only One-Way Call Speaker (No Microphone / Full-Duplex Hands-Free Function), VAD Voice Activity Detection, CNG Comfort Noise Generation
• Physical Interfaces: 1 x RJ9 Handset Port, Single 1 x RJ45 10/100BASE-TX Fast Ethernet PoE Uplink Port, 48V DC Aux Power Input Jack, Password-Protected Factory Reset Pinhole; No PC Pass-Through Switch Port, No RJ9 Headset Jack
• Power Specifications: Dual Compatibility Power Source (Legacy Cisco Pre-Standard Inline Power + IEEE 802.3af Class 0 PoE Primary Power); Optional Separate 48V DC Universal AC Power Cube (CP-PWR-CUBE-2=, Sold Separately)
• Mounting Method: Single-position fixed foldable desktop foot stand as standard; Wall mountable via integrated rear chassis cutouts (No separate wall mount accessory kit required)
• Supported QoS & Networking Features: IPv4 DHCP/Static IP Assignment, CDP / LLDP Device Discovery, 802.1Q Voice VLAN Tagging, 802.1p Layer 2 QoS Prioritization, STUN NAT Traversal, SNTP Network Time Synchronization, Cisco Unified SRST Dual SIP Registration Support
• 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: Single Independent SIP/SCCP Line Registration with Shared Line Appearance Support, Multi-Call-Per-Line Appearance, Supports Multiple Concurrent Calls + Call Waiting, Dedicated Hold / Redial / Transfer / Conference Hard Keys, Monitor-Only Ringtone/Call Monitoring Speaker, MWI Voicemail Message Waiting LED Alert, Anonymous Call Rejection, Outbound Caller ID Blocking, Call Forward All/Busy/No Answer, Call Park & Call Pickup, Intercom Auto-Answer Calling, Toll Bar Call Block Override, Local Speed Dial Programming, Local Call History Log Storage
• Management Tools: TFTP Secure Remote Auto-Provisioning, Unattended Bulk Remote Firmware Upgrades, Embedded Web-Based Local Admin Portal, CUCM / Cisco Unified SRST Centralized Device Monitoring, Syslog Event Logging, Built-In Ping Network Diagnostic Tool
• Target Deployment Scenarios: Commercial building lobby public telephones, factory production floor auxiliary voice lines, laboratory workspace basic VoIP endpoints, office hallway and corridor auxiliary phones, cafeteria and staff break room shared voice stations, hotel back-of-house auxiliary single-line phones, all low-traffic industrial/hospitality/business auxiliary VoIP environments requiring cost-effective basic single-line call handling with minimal hardware maintenance requirements
• Lifecycle Status: Announced End-of-Sale (EoS) May 22, 2006; Cisco CP-7906G recommended direct hardware replacement model
• Warranty: One-year limited Cisco hardware warranty

Model Quick Reference

• CP-7902G is the entry-level single-line IP phone of the Cisco Unified IP Phone 7900 Series, supporting dual SCCP/CUCM and open SIP / SRST fallback protocols, purpose-built exclusively for low-traffic shared auxiliary spaces (lobbies, factories, labs) requiring only basic core call functionality without desktop productivity features.
• Core positioning: Ultra cost-optimized basic single-line VoIP endpoint with no graphical LCD screen, differentiated from all higher-tier 7900 Series desk phone models by three critical hardware limitations: monitor-only one-way speaker (no two-way hands-free conversation), single Fast Ethernet uplink port (no PC pass-through switch), and complete absence of a graphical LCD screen for visual Caller ID and directory browsing.
• Key internal series differentiation vs other 7900 series models:
  1. CP-7902G: Single line, no LCD screen, monitor-only speaker (no hands-free), single Fast Ethernet uplink port (no PC passthrough), minimal dedicated function key layout, no headset jack
  2. CP-7905G: Single line, no LCD screen, no built-in speaker at all (handset audio only), single Fast Ethernet uplink port
  3. CP-7912G: Single line, no LCD screen, full-duplex two-way hands-free speakerphone, dual Fast Ethernet ports with PC pass-through switch, expanded dedicated function key bank, RJ9 headset jack support
  4. CP-7942G: Two multi-call lines, backlit graphical LCD display, full-duplex speakerphone, dual Fast Ethernet PC pass-through ports, programmable BLF line keys, headset jack support
• Primary deployment advantage: Minimal total cost of ownership and simplified hardware maintenance for low-traffic shared industrial/hospitality auxiliary voice deployments, combining basic essential single-line call handling capabilities, dual-protocol compatibility supporting both on-prem CUCM and Cisco Unified SRST SIP fallback disaster recovery, dual pre-standard/standard PoE power compatibility for broad legacy/modern switch support, compact space-saving chassis form factor, flexible desktop or wall mounting, and centralized remote mass provisioning and firmware upgrade management for multi-site enterprise auxiliary voice network deployments.

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