Cisco Phone Manual CP 8851

The Cisco CP 8851 is a full-featured Unified IP Phone designed for professionals, offering high-quality audio, a large color display, support for up to 12 lines, integrated Gigabit Ethernet switch, Power over Ethernet (PoE) support, and advanced telephony features. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Large color LCD display, Handset with wideband audio, Speakerphone, 12 programmable line/speed-dial buttons, Navigation cluster, Volume rocker, Mute button, Headset port, Ethernet ports.

Installation

Unpack and inspect contents. Choose appropriate location on desk or wall.

1. Connect to network: Plug Ethernet cable from switch into NETWORK port on phone.
2. Connect computer (optional): Plug computer Ethernet cable into PC port on phone.
3. Connect handset: Insert handset cord into HANDSET port.
4. Connect headset (optional): Plug into HEADSET port.
5. Apply power: Use PoE from switch or connect optional power adapter to DC IN port.

WARNING! Use only approved power sources. Ensure cables are routed safely to prevent tripping hazards.

First-Time Setup

Phone will boot and attempt to register with call control system.

1. Initial configuration: Follow on-screen prompts to set language, time zone, and network settings if required.
2. Line registration: Phone should automatically register lines if pre-configured by administrator.
3. Test functions: Make test call to verify audio quality and basic features.
4. Personalize settings: Use Settings menu to configure ringtones, display contrast, and button assignments.

CAUTION! Do not place phone in direct sunlight or near heat sources. Allow proper ventilation.

Specifications

• Dimensions: 8.7 x 10.2 x 6.3 inches (221 x 259 x 160 mm).
• Weight: 3.3 lbs (1.5 kg).
• Display: 5-inch color TFT LCD, 480 x 272 resolution.
• Audio Codecs: G.711, G.722, G.729, iLBC, Opus.
• Network Interfaces: 2 x 10/100/1000BASE-T Ethernet (RJ-45).
• Power: IEEE 802.3af PoE (Class 3) or 48V DC power adapter.
• Protocol Support: SIP (Session Initiation Protocol) and SCCP (Skinny Call Control Protocol).
• Operating Temperature: 32°F to 104°F (0°C to 40°C).
• Humidity: 10% to 95% non-condensing.

Controls and Settings

Access menu system via NAVIGATION cluster and soft keys. Front buttons: MUTE, HEADSET, SPEAKERPHONE, VOLUME rocker.

Soft Keys: Context-sensitive functions displayed on screen (Hold, Transfer, Conference, etc.).

Settings Menu: Navigate to configure Phone Settings (ringer, display, audio), Network Configuration, Security Settings, and Device Information. Personalize: Set up speed dials, call history, and favorites. Administrator settings: Accessed via ** key sequences for advanced configuration (consult administrator).

Connecting Devices

Network: RJ-45 to NETWORK port. Computer: RJ-45 to PC port. Headset: 3.5mm plug to HEADSET jack.

1. Ensure phone is powered off or disconnected before making connections.
2. Use Cat5e or better Ethernet cables for network connections.
3. For wall mounting, use included wall mount kit and follow instructions.
4. Verify link lights on Ethernet ports after connection.

Tip: Label cables for easy identification during maintenance or relocation.

Advanced Telephony Features

Supports standard and advanced business telephony features.

1. Making calls: Lift handset or press SPEAKERPHONE/HEADSET, dial number.
2. Answering calls: Lift handset, press SPEAKERPHONE, or press Answer soft key.
3. Hold: Press Hold soft key to place call on hold.
4. Transfer: During call, press Transfer, dial target number, press Transfer again.
5. Conference: During call, press Conference, dial participant, press Conference again to merge.
6. Call forwarding: Configure via phone menu or call control system.
7. Speed dial: Assign frequently dialed numbers to programmable line buttons.
8. Missed calls: Access via directories button or call history.

WARNING! Emergency calls may require specific configuration. Verify with administrator.

Accessibility Features

Hearing Aid Compatibility (HAC): Meets FCC requirements. Visual alerts: Flashing LED for incoming calls (configurable). Audio adjustments: Separate volume controls for handset, speakerphone, headset, and ringer. High-contrast display settings available in menu.

Care & Cleaning

Disconnect power before cleaning. Use slightly damp, lint-free cloth. Do not use abrasive cleaners, solvents, or sprays directly on phone.

CAUTION! Avoid getting moisture into openings. Never submerge any part of the phone.

Regulatory Information

FCC Part 15 & 68: Complies with rules for digital devices and telephone equipment. Industry Canada (IC) compliant. CE marked. RCM (Australia). For full regulatory details, see device label and documentation. Copyright © Cisco Systems, Inc. For support, visit www.cisco.com/go/support or contact your system administrator.

Troubleshooting

Reset: For factory reset (erases all settings), press and hold # key while plugging in power, then follow prompts.

Service: Contact your system administrator or Cisco Technical Support.