Cisco IP Phone 8841 User Manual

The Cisco IP Phone 8841 is a business-class VoIP desk phone featuring a high-resolution color display, support for up to 10 lines, advanced audio quality with wideband audio, Power over Ethernet (PoE), Gigabit Ethernet ports, integrated Bluetooth, and support for 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, Navigation cluster, Softkeys, Line keys, Volume rocker, Headset port, Ethernet ports.

Feature	Description
Display	5-inch high-resolution color LCD with backlight
Audio	HD wideband audio, built-in speakerphone, acoustic fence technology
Network	Dual Gigabit Ethernet ports with PoE support
Bluetooth	Integrated for wireless headset connectivity
Lines/Extensions	Supports up to 10 lines with dedicated buttons
Headset Port	Standard RJ-9 connector for wired headsets
USB Port	For future expansion and accessories
Conference	Built-in conference bridge capability
Security	Encrypted signaling and media (SRTP, TLS)
Power	802.3af PoE or optional external power adapter

Installation

Unpack and inspect contents. Place on stable desk surface.

Connect to network: Plug Ethernet cable from switch into phone's SW port.
Connect computer: Plug computer Ethernet cable into phone's PC port.
Connect handset: Attach coiled handset cord to handset jack.
Power the phone: Use PoE from switch or connect external power adapter.

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

First-Time Setup

Phone will automatically boot and register with Cisco Unified Communications Manager.

Initial boot: Wait for phone to download configuration from server.
Verify registration: Check for extension number on display.
Set preferences: Use Settings menu to configure language, time format, ringtones.
Test call: Make a test call to verify audio quality and connectivity.

CAUTION! Do not unplug during firmware download. Allow process to complete.

Specifications

Display: 5-inch color TFT, 480 x 272 pixels.
Audio Codecs: G.711, G.722, G.729, iLBC.
Network: Dual 10/100/1000 Mbps Ethernet ports.
Protocols: SIP, SCCP, 802.1X, LLDP-MED.
Power: 802.3af PoE (Class 2) or 48V DC power adapter.
Bluetooth: Version 3.0, HSP and HFP profiles.
Dimensions: 9.0 x 10.2 x 6.5 inches.
Weight: 3.5 lbs (1.6 kg).
Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access menu via NAVIGATION cluster. Front buttons: MESSAGES, DIRECTORY, HELP, SETTINGS, APPLICATIONS.

Softkeys: Context-sensitive buttons below display for call functions.

Settings: Language, Time Format, Screen Contrast, Ringtone Selection, Bluetooth Setup, Network Configuration. Call Features: Hold, Transfer, Conference, Forward, Park. Audio: Volume controls for handset, speakerphone, headset, ringer.

Connecting Devices

Headset: RJ-9 port for wired headset. Bluetooth: Pair compatible wireless headset. Computer: Ethernet pass-through via PC port.

Turn off phone before connecting wired headset.
For Bluetooth: Enable in Settings > Bluetooth > Add Device.
For computer: Connect Ethernet cable between PC port and computer NIC.

Tip: Use certified Cisco headsets for optimal audio performance.

Using Phone Features

Supports basic and advanced telephony features.

Make call: Lift handset or press Speaker button, dial number.
Answer call: Lift handset, press Speaker, or press Answer softkey.
Hold: Press Hold button during active call.
Transfer: Press Transfer, dial target number, press Transfer again.
Conference: Press Conference, dial participant, press Conference again.
Forward: Press Forward softkey, enter destination number.
Voicemail: Press Messages button to access voicemail.
Directory: Press Directory to view corporate directory or call history.

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

Accessibility Features

Hearing Aid Compatibility: Meets FCC requirements. Visual Alerts: Flashing LED for incoming calls. Audio Adjustments: Separate volume controls for ringer, handset, speaker. High-Contrast Display: Adjustable screen contrast settings.

Care & Cleaning

Unplug power before cleaning. Use slightly damp, lint-free cloth. Do not use abrasive cleaners or solvents.

CAUTION! Never spray liquids directly on phone. Avoid extreme temperatures.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business environments. CE Marked: Complies with European directives. Industry Canada ICES-003. Copyright © Cisco Systems, Inc. All trademarks are property of their respective owners. For support, visit www.cisco.com/go/support or contact Cisco Technical Assistance Center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display/power	Power source	Check PoE switch or power adapter; verify cable connections.
No network connectivity	Cable/configuration	Check Ethernet cables; verify switch port; check network settings.
No audio	Volume settings/handset	Adjust volume controls; check handset connection; test with headset.
Cannot make/receive calls	Registration/network	Verify phone is registered to CUCM; check network connectivity.
Poor audio quality	Network QoS/device	Check network QoS settings; test with different handset/headset.

Reset: Press and hold # key during boot for factory reset (erases all settings).

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