Cisco Phone System User Manual CP-8811

The Cisco CP-8811 is a business-grade IP phone designed for small to medium-sized businesses, offering high-quality voice communication, a large graphical display, support for multiple lines, Power over Ethernet (PoE), built-in Gigabit Ethernet switch, headset support, 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: Large backlit graphical display, Handset, Speakerphone, Volume controls, Navigation cluster, Line keys, Softkeys, Headset jack, Ethernet ports.

Feature	Description
Graphical Display	High-contrast screen for call information and menus
Handset	Standard handset with noise-canceling microphone
Speakerphone	Full-duplex speakerphone for hands-free calls
Line Keys	Dedicated keys for multiple phone lines
Softkeys	Context-sensitive keys for phone functions
Headset Jack	For connecting a wired headset (2.5mm)
Ethernet Ports	Two 10/100/1000 Mbps ports (LAN and PC)
Power over Ethernet (PoE)	Receives power through Ethernet cable (802.3af)
Volume Controls	Separate controls for handset, speaker, and ringer
Navigation Cluster	Four-way navigation with select button

Installation

Unpack and inspect contents. Place on stable surface.

Connect to network: Use Ethernet cable to connect LAN port to switch/router.
Connect PC (optional): Use second Ethernet cable from PC port to computer.
Connect handset: Plug handset cord into handset jack.
Connect power: Use power adapter if PoE is not available.
Connect headset (optional): Plug into headset jack.

WARNING! Use only approved power adapter. Ensure cables are securely connected.

First-Time Setup

Phone will boot and attempt to register with Cisco Unified Communications Manager.

Network configuration: Ensure phone obtains IP address via DHCP.
Phone registration: Enter extension and authentication credentials if prompted.
Set language: Use Settings menu to select preferred language.
Configure preferences: Set time zone, ringtone, and display contrast.
Test call: Make a test call to verify audio quality.

CAUTION! Do not disconnect during firmware upgrade. Ensure stable network connection.

Specifications

Display: 3.5-inch graphical LCD with backlight.
Network: 10/100/1000 Mbps Ethernet, IEEE 802.3af PoE.
Audio: Wideband audio support, HD Voice.
Protocols: SIP and SCCP support.
Power: 802.3af PoE or external power adapter (included).
Supported Features: Call hold, transfer, conference, forward, voicemail.
Physical Dimensions: Standard desk phone size.
Operating Temperature: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access menu via Settings button. Front Panel: Handset, Speakerphone, Mute, Headset, Volume, Navigation, Line keys, Softkeys.

Remote Management: Configured via Cisco Unified Communications Manager or web interface.

Settings: Language, Time/Date, Display contrast, Ringtone selection, Network configuration. Audio: Volume controls for handset, speaker, ringer. Call Features: Hold, Transfer, Conference, Forward, Voicemail access. Security: Phone lock, authentication settings.

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: 2.5mm jack.

Turn off phone before connecting devices.
Match cables to correct ports.
Ensure PoE switch provides adequate power.
Use quality Ethernet cables for reliable connection.

Tip: Use shielded cables in environments with electrical interference.

Using Phone Features

Supports basic and advanced telephony features.

Make call: Lift handset or press Speakerphone, dial number.
Answer call: Lift handset, press Speakerphone, or press Answer softkey.
Hold call: Press Hold button.
Transfer call: Press Transfer, dial target number, press Transfer again.
Conference call: Press Conference, dial participant, press Conference again.
Forward calls: Use Call Forward feature in settings.
Voicemail: Press Messages button or dial voicemail access number.
Adjust volume: Use volume controls during active call.

WARNING! Do not expose phone to liquids. Keep ventilation openings clear.

Accessibility Features

Visual alerts: Flashing LED for incoming calls. Audio adjustments: Separate volume controls. Hearing aid compatible: Handset meets HAC requirements. Large display: High-contrast screen for better visibility.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth; do not use liquids directly on phone.

CAUTION! Do not use abrasive cleaners or solvents. Keep away from heat sources.

Regulatory Information

FCC Part 15: Class A digital device; complies with 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

Symptom	Possible Cause	Corrective Action
Phone not powering on	Power/PoE issue	Check Ethernet cable; verify PoE switch; try power adapter.
No dial tone	Network/registration	Check network connection; verify phone registration with CUCM.
Poor audio quality	Network/connection	Check Ethernet cables; verify network QoS settings.
Display blank	Power/backlight	Check power; adjust display contrast in settings.
Cannot make calls	Configuration	Verify dial plan configuration; check for error messages.

Reset: Press and hold # key during boot for factory reset.

Service: Contact Cisco Technical Assistance Center or authorized service provider.