The Cisco Unified IP Phone 8841 is a high-performance, full-featured business IP phone designed for professionals and executives. It features a high-resolution color display, support for up to 12 lines, integrated Gigabit Ethernet, advanced audio quality with wideband audio support, and a robust set of telephony features including hold, transfer, conference, and voicemail access. It operates on Cisco Unified Communications Manager (CUCM) and is powered via Power over Ethernet (PoE) or an optional power adapter. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: High-resolution color display, Handset, Speakerphone, Navigation cluster, Softkeys, Line/Feature buttons, Volume rocker, Mute button, Headset port.
| Feature | Description |
|---|---|
| Display | High-resolution color graphical display with backlight |
| Audio | HD Voice (wideband audio) support, built-in speakerphone |
| Network | Dual Gigabit Ethernet ports (PC pass-through) |
| Power | IEEE 802.3af PoE (Class 2) or optional power adapter |
| Lines/Features | Supports up to 12 lines with programmable feature buttons |
| Headset Port | 3.5mm headset jack for hands-free operation |
| Hold | Places active call on hold |
| Transfer | Transfers call to another party |
| Conference | Creates a multi-party conference call |
| Messages | Direct access to voicemail system |
Unpack and inspect contents. Place phone on a stable, flat surface.
WARNING! Use only approved power sources. Ensure cables are not pinched or damaged.
Phone will boot and register with the Cisco Unified Communications Manager.
CAUTION! Do not unplug the phone during the boot/registration process.
Access menus via the NAVIGATION cluster and softkeys. Front Panel: Speakerphone, Mute, Volume rocker, Headset, Messages, Settings, Directories.
Softkeys: Context-sensitive buttons below the display for features like Hold, Transfer, Conference, More.
Settings Menu: User Preferences (Ringtone, Screen Contrast, Language), Network Configuration (view IP address), Status (Firmware, model). Call Features: Use softkeys or dedicated buttons for Hold, Transfer, Conference, Forward. Audio Adjustment: Use Volume rocker for handset, speaker, ringer volume. Press Mute to toggle microphone.
Network: NETWORK port to switch. PC: PC port to computer. Handset: Standard RJ-9 connector. Headset: 3.5mm jack.
Tip: Use certified Cisco headsets for optimal audio quality and compatibility.
Supports standard and advanced telephony features via CUCM.
WARNING! Do not use excessive force on buttons or navigation cluster.
Hearing Aid Compatibility (HAC): Handset is HAC rated. Visual Alerts: Flashing LED for missed calls/messages. Audio Adjustments: Independent volume control for ringer, handset, speaker. High-Contrast Display: Adjustable screen settings for improved visibility.
Disconnect power before cleaning. Use a soft, dry, lint-free cloth. For stubborn marks, lightly dampen cloth with water. Do not use liquids, aerosols, or abrasives directly on the phone.
CAUTION! Do not allow moisture into openings. Keep away from extreme heat, cold, or humidity.
FCC Part 15: Class B digital device; complies with limits for residential use. Industry Canada ICES-003: Class B digital apparatus. This device complies with Part 68 of FCC rules. Ringer equivalence number (REN): 0.8B. For connection to the telephone network, use only FCC Part 68 compliant equipment. Copyright © 2025 Cisco Systems, Inc. All rights reserved. For support, visit www.cisco.com/go/support or contact your system administrator.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Phone does not power on | Power/PoE issue | Check Ethernet/Power connection; ensure switch provides PoE; try power adapter. |
| No dial tone | Network/Registration | Check cable connections; verify phone shows "Registered" on screen; contact administrator. |
| Poor audio quality | Network/Handset | Check for cable damage; try different handset; verify network QoS settings. |
| Display is blank/dim | Settings/Power | Adjust display contrast in Settings; ensure adequate power. |
| Cannot make/receive calls | Configuration | Verify extension is assigned in CUCM; contact system administrator. |
Reset: To restart phone, unplug power/Ethernet and reconnect. For factory reset (erases all settings), contact system administrator.
Service: Contact your Cisco system administrator or visit www.cisco.com/go/support.