Cisco IP Phone 8811 User Manual

The Cisco IP Phone 8811 is a business-grade VoIP desk phone featuring a high-resolution grayscale display, support for Power over Ethernet (PoE), integrated Gigabit Ethernet switch, multiple programmable line/feature keys, speakerphone, headset port, and support for advanced call features and UC integrations. 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. Making and Managing Calls 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-resolution grayscale display, Handset, Speaker, Programmable line/feature keys, Navigation cluster, Volume rocker, Headset port, Ethernet ports.

Feature	Description
Display	High-resolution grayscale LCD with adjustable contrast
Network Ports	Two 10/100/1000 Ethernet ports (LAN, PC) with PoE support
Programmable Keys	Multiple keys for lines, speed dials, and features
Audio	Full-duplex speakerphone, handset, headset port
Power	802.3af PoE or optional external power adapter
Headset Port	3.5mm port for headset connection
Navigation Cluster	5-way navigation for menu access
Volume Rocker	Controls handset, speaker, and ringer volume
Mute	Mutes microphone for privacy
Messages	Access to visual voicemail

Installation

Unpack and inspect contents. Place on stable desk surface.

Connect to Network: Plug Ethernet cable from switch into the LAN port.
Connect Computer (Optional): Plug Ethernet cable from PC into the PC port.
Connect Handset: Plug coiled handset cord into the handset jack.
Apply Power: Phone powers via PoE from switch, or connect optional power adapter.

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

First-Time Setup

Phone will boot and attempt to connect to the network.

Network Registration: Phone should auto-register to your call control system (CUCM, etc.).
Check Display: Confirm extension number and status appear on screen.
Set User Preferences: Press Settings button to set time, date, ringtone, contrast.
Configure Speed Dials: Assign contacts to programmable keys via phone menu or web interface.

CAUTION! Do not place heavy objects on the phone. Ensure adequate ventilation.

Specifications

Display: High-resolution grayscale LCD.
Network: 10/100/1000 Mbps Ethernet with IEEE 802.3af PoE.
Audio Codecs: G.711, G.729, G.722, iLBC.
Protocols: SIP, SCCP, 802.1X, LLDP, CDP.
Ports: 2x RJ-45 (LAN, PC), RJ-9 handset, 3.5mm headset.
Power: 802.3af PoE (Class 2) or 12V DC power adapter.
Operating Temp: 32°F to 104°F (0°C to 40°C).
Compliance: FCC Part 15, UL, CE, RoHS.

Controls and Settings

Access settings via the Settings button or phone web GUI. Front Panel: Handset, Speaker, Navigation cluster, Programmable keys, Volume rocker, Mute button.

Key Functions: Hold, Transfer, Conference, Messages, Settings, Headset, Speakerphone, Mute, Navigation (Up/Down/Left/Right/Select).

Settings Menu: User Preferences (Ringtone, Contrast, Language), Network Configuration (view IP), Status (Firmware, Model). Programmable Keys: Configure via phone menu or web interface for line appearances, speed dials, feature access (BLF).

Connecting Devices

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

Ensure phone is powered off or disconnected before connecting cables.
Use standard CAT5e or higher Ethernet cables.
For headset use, plug in before activating headset mode.

Tip: Label cables for easy identification during maintenance.

Making and Managing Calls

Supports basic and advanced telephony features.

Make a Call: Lift handset or press Speakerphone, dial number, press Dial softkey.
Answer a Call: Lift handset, press Speakerphone, or press Answer softkey.
Hold: Press Hold button to place active call on hold.
Transfer: Press Transfer, dial target number, press Transfer again to complete.
Conference: Press Conference, dial participant, press Conference again to merge.
Voicemail: Press Messages button to access visual voicemail.
Call History: Press the Navigation pad to view missed, received, placed calls.
Adjust Volume: Use Volume rocker during a call for handset/speaker, or at idle for ringer.

WARNING! Do not use the phone in wet conditions. Keep liquids away from the device.

Accessibility Features

Hearing Aid Compatible (HAC) handset. Visual alerts via LED on handset and programmable keys. Adjustable ringer volume and tone patterns. High-contrast display settings.

Care & Cleaning

Disconnect power before cleaning. Use a soft, dry cloth. For stubborn marks, dampen cloth with water only. Do not use cleaners or aerosols.

CAUTION! Do not spray liquids directly on the phone. Avoid abrasive materials.

Regulatory Information

FCC Part 15 Class B: This device complies with limits for a Class B digital device. Canadian ICES-003. This product complies with the RoHS Directive. Contains FCC ID: LDK102030. For regulatory compliance information, visit www.cisco.com/go/telecompliance. Copyright © 2025 Cisco Systems, Inc. Cisco and the Cisco logo are trademarks of Cisco Systems, Inc. For support, contact your system administrator or visit www.cisco.com/support.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power/display blank	Power source/Ethernet	Check PoE switch power or power adapter connection; verify Ethernet cable is secure.
No dial tone	Network/registration	Check network connectivity; confirm phone is registered to call control system.
Call audio issues	Handset/network	Check handset cord; verify network QoS for voice traffic is configured.
Keys not responding	Phone lock/software	Check for phone lock icon; reboot phone; contact administrator for firmware update.
Cannot access web interface	IP/credentials	Obtain phone IP from Settings menu; use correct administrator username/password.

Reset: For network settings, use **#** to reset or via web interface.

Service: Contact your system administrator or Cisco TAC: 1-800-553-2447; www.cisco.com/support