Cisco Model CP 8811 User Manual

The Cisco Model CP 8811 is a unified communications IP phone designed for business environments, featuring a high-resolution color display, support for multiple lines, advanced audio capabilities with wideband audio, Power over Ethernet (PoE), built-in Gigabit Ethernet switch, and integration with Cisco Unified Communications Manager. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Using Phone Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-resolution color display, Handset, Speakerphone, Keypad, Navigation cluster, Ethernet ports, Headset port.

FeatureDescription
DisplayHigh-resolution color LCD with backlight
AudioWideband audio support for handset and speakerphone
NetworkDual Gigabit Ethernet ports with built-in switch
PowerPower over Ethernet (PoE) or optional power adapter
Headset Port3.5mm port for wired headset connection
Line KeysMultiple programmable line/speed-dial keys
Navigation Cluster5-way navigation button for menu control
Volume ControlDedicated buttons for handset, speaker, and ringer volume
MUTEButton to mute microphone during calls
POWERPower indicator and network status LED

Installation

Unpack and inspect contents. Place on stable surface.

  1. Connect to network: Use Ethernet cable to connect LAN port to network switch.
  2. Connect computer (optional): Use PC port to connect to computer for pass-through networking.
  3. Power the phone: Use PoE from switch or connect optional power adapter to power port.
  4. Connect handset: Plug handset cord into handset port.

WARNING! Use only approved power adapter. Ensure network cable is securely connected.

First-Time Setup

Power on phone; follow on-screen prompts.

  1. Network registration: Phone will attempt to register with Cisco Unified Communications Manager.
  2. Configure settings: Use phone menu to set language, time zone, and user preferences.
  3. Set up voicemail: Follow prompts to configure voicemail access and password.
  4. Test audio: Make test call to verify handset and speakerphone functionality.

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

Specifications

Controls and Settings

Access menu via navigation button. Front Panel: Line keys, Navigation cluster, Volume controls, MUTE, Speakerphone.

Buttons: Hold, Transfer, Conference, Messages, Directory, Settings, Headset, Speakerphone.

Display Settings: Contrast, Backlight, Screen timeout. Audio Settings: Ringer volume, tone selection, handset/speaker volume. Network Settings: IP configuration, VLAN, QoS. Phone Settings: Language, time format, date format, screen saver.

Connecting Devices

Network: LAN port to switch. Computer: PC port to computer. Headset: 3.5mm headset port.

  1. Turn off phone before connecting additional devices.
  2. Match cables to ports (Ethernet to LAN, headset to headset port).
  3. Power on phone after all connections are made.

Tip: Use quality Ethernet cables for reliable network connectivity.

Using Phone Features

Supports basic and advanced calling features.

  1. Make call: Lift handset or press Speakerphone, dial number.
  2. Answer call: Lift handset, press Speakerphone, or press Answer softkey.
  3. Hold call: Press Hold button during active call.
  4. Transfer call: Press Transfer, dial target number, press Transfer again.
  5. Conference call: Press Conference, dial participant, press Conference again.
  6. Voicemail: Press Messages button to access voicemail.
  7. Directory: Press Directory to view corporate directory or call history.
  8. Volume adjustment: Use volume buttons during call or while idle.

WARNING! Do not expose phone to liquids. Keep vents clear for proper ventilation.

Accessibility Features

Visual Alerts: Flashing LED for incoming calls. Audio Adjustments: Customizable ringer tones and volumes. TTY Support: Compatible with teletype devices when configured.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth for display; dry cloth for body. Do not use abrasive cleaners.

CAUTION! Do not spray liquids directly on phone. Avoid cleaning agents containing alcohol or ammonia.

Regulatory Information

FCC Part 15: Class A digital device; complies with interference limits for business environments. CE marked for European compliance. Copyright © Cisco Systems, Inc. All rights reserved. For support, visit www.cisco.com or contact Cisco Technical Assistance Center.

Troubleshooting

SymptomPossible CauseCorrective Action
Phone not powering onPower/PoE issueCheck Ethernet cable; verify PoE switch or power adapter connection.
No network connectivityCable/configurationCheck Ethernet cable; verify network settings; restart phone.
No audio during callsVolume/mute settingsAdjust volume; check mute status; verify audio codec configuration.
Display is blankBacklight/powerAdjust backlight settings; check power source; restart phone.
Cannot register to serverNetwork/server configVerify IP address; check TFTP server settings; contact administrator.

Reset: Settings > Admin Settings > Reset if available.

Service: Contact Cisco Technical Assistance Center; www.cisco.com

Cisco Model CP 8811 User Manual © - All Rights Reserved 2025