Cisco Phone 8811 Manual

The Cisco IP Phone 8811 is a business-grade VoIP desk phone featuring a high-resolution grayscale display, support for up to 2 lines, Power over Ethernet (PoE), Gigabit Ethernet ports, integrated IEEE 802.3af PoE classification, full-duplex speakerphone, headset and handset ports, and support for advanced telephony features like call hold, transfer, conference, and more. 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. Advanced Call Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Grayscale display, Handset, Speakerphone, Line buttons, Navigation cluster, Volume rocker, Headset port, Ethernet ports.

Feature	Description
Display	High-resolution grayscale LCD with adjustable contrast
Line/Feature Buttons	Dedicated buttons for up to 2 lines and features
Speakerphone	Full-duplex for hands-free conversations
Headset Port	3.5mm port for wired headset connection
Network Ports	Two 10/100/1000 Ethernet ports (LAN, PC)
Power over Ethernet (PoE)	IEEE 802.3af Class 2 compliant
Volume Rocker	Controls handset, headset, speaker, and ringer volume
Navigation Cluster	Four-way navigation with Select button
Mute Button	LED-indicated mute for microphone
Hold/Resume Button	Places active call on hold

Installation

Unpack and inspect contents. Place on stable desk surface.

Connect to Network: Use Ethernet cable to connect the LAN port to your network switch.
Connect a PC (Optional): Use second Ethernet cable from PC port to your computer.
Power the Phone: Use PoE from switch or optional power adapter.
Connect Handset and Headset: Plug handset cord into jack; connect headset if desired.

WARNING! Use only approved power sources. Ensure cables are not pinched or damaged.

First-Time Setup

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

Check Network: Ensure Ethernet link is active (LEDs illuminated).
Configure Settings: Use the phone's web interface or follow your system administrator's instructions to set extension, SIP server, etc.
Test Basic Functions: Lift handset to check for dial tone; make a test call.
Adjust Preferences: Set time/date, ringtone, display contrast via settings menu.

CAUTION! Do not place phone in excessively hot, cold, or humid environments.

Specifications

Display: Grayscale, pixel-based LCD.
Network: 10/100/1000 Mbps Ethernet, IEEE 802.3af PoE.
Audio: Wideband audio support (G.722), Acoustic Echo Cancellation.
Ports: Two RJ-45 Ethernet, RJ-9 handset, 3.5mm headset.
Protocols: SIP (Session Initiation Protocol).
Power Source: 802.3af PoE or 48V DC power adapter (sold separately).
Operating Temp: 32°F to 104°F (0°C to 40°C).
Compliance: FCC Part 15, ICES-003, CE, RoHS.

Controls and Settings

Access menu via **Settings** button. Front Panel: Line buttons, Hold, Mute, Headset, Speakerphone, Navigation cluster, Volume rocker.

Key Functions: **Hold** to place call on hold. **Mute** to toggle microphone off (LED on). **Headset** to toggle headset mode. **Speakerphone** for hands-free. **Volume** adjusts audio levels for handset, speaker, ringer, or headset.

Settings Menu: Network configuration, Phone configuration (extension, SIP), Audio settings (ringer, volume limits), Display (contrast, backlight timeout), Time/Date.

Connecting Devices

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

Ensure phone is powered off before connecting cables.
Use standard CAT5e or better Ethernet cables.
For headset, use a compatible CTI (Computer Telephony Integration) adapter if required by your headset model.

Tip: Label cables for easier identification during maintenance.

Advanced Call Features

Supports standard and advanced telephony features via your call control system.

Make a Call: Lift handset or press Speakerphone/Headset, dial number.
Answer a Call: Lift handset, press Speakerphone, Headset, or corresponding line button.
Hold/Resume: Press Hold button; press Resume or line button to retrieve.
Transfer: During a call, press Transfer, dial target number, press Transfer again or hang up (depending on system).
Conference: During a call, press Conference, dial second party, press Conference again to join.
Call Forward: Configure via settings menu or feature codes (e.g., *72).
Voicemail: Press Messages button or dial voicemail access number.

WARNING! Feature availability depends on your service provider or PBX configuration.

Accessibility Features

Visual Alerts: Flashing line button for incoming calls. Audio Adjustments: Independent volume control for ringer, handset, speaker, headset. High-Contrast Display: Adjustable contrast for improved readability.

Care & Cleaning

Disconnect power before cleaning. Use a soft, slightly damp cloth. Do not use abrasive cleaners, solvents, or aerosols.

CAUTION! Never spray liquids directly onto the phone. Avoid getting moisture into openings.

Regulatory Information

FCC Part 15: Class A digital device. This equipment complies with FCC radiation exposure limits for an uncontrolled environment. Copyright © Cisco Systems, Inc. All rights reserved. Cisco and the Cisco logo are trademarks of Cisco Systems, Inc. For technical support, visit www.cisco.com/go/support or contact your system administrator.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power/no display	Power source/Ethernet cable	Check PoE switch or power adapter; reseat Ethernet cable; verify cable is functional.
No dial tone	Network/Configuration	Check network connectivity; verify phone is registered with call server; contact administrator.
Call audio issues	Network quality/Handset cord	Check network for packet loss/jitter; reseat handset cord; try different handset.
Phone not registering	IP configuration/SIP settings	Verify DHCP is enabled or static IP is correct; check SIP username/password/server address.
Buttons unresponsive	Software/Firmware	Restart phone; contact administrator to check/upgrade firmware.

Reset: For factory reset, press and hold **#** while powering on (check admin guide).

Service: Cisco Technical Support: www.cisco.com/go/support