Cisco Phone System CP 8841 Manual

The Cisco CP 8841 is a high-performance, multi-line IP phone designed for busy workspaces. It features a large color display, support for up to 12 lines, integrated Gigabit Ethernet, PoE support, HD voice, Bluetooth headset compatibility, and a built-in web interface for configuration. 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: Large color LCD display, Speakerphone, Handset, Ethernet ports, Headset port, Bluetooth support, Programmable line/speed dial keys.

Feature	Description
Display	5-inch color LCD with touch sensitivity
Network Ports	Dual Gigabit Ethernet (LAN and PC)
Power	802.3af PoE or optional AC adapter
Audio	HD Voice wideband audio, built-in speakerphone
Bluetooth	Support for wireless headsets and devices
Headset Port	3.5mm jack for wired headsets
Line Keys	Up to 12 programmable line/speed dial keys
Conference	Built-in support for multi-party conferences
Security	Encrypted signaling and media (SRTP, TLS)
Web Interface	Built-in web server for configuration

Installation

Unpack and inspect contents. Place on stable desk surface.

Connect to network: Use Ethernet cable to connect LAN port to switch/router.
Connect PC: Use second Ethernet port to connect to computer (optional).
Power the phone: Use PoE from switch or connect AC adapter to power port.
Connect handset: Plug coiled handset cord into handset port.
Connect headset: Plug into 3.5mm headset jack (optional).

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

First-Time Setup

Power on phone; follow on-screen prompts.

Network configuration: Phone will attempt DHCP; if static IP needed, configure via web interface.
Phone registration: Enter extension number and server address provided by administrator.
Set language: In Settings menu, select preferred language (default ENGLISH).
Adjust audio: Use Audio Settings to adjust handset, speakerphone, and headset volumes.
Configure line keys: Assign extensions or speed dial numbers to programmable keys.

CAUTION! Handle phone with care; avoid placing heavy objects on display.

Specifications

Display: 5-inch color LCD, 480 x 272 pixels.
Network: Dual 10/100/1000 Mbps Ethernet ports, 802.3af PoE.
Audio Codecs: G.711, G.722, G.729, iLBC, Opus.
Protocols: SIP, SCCP, HTTP/HTTPS, TFTP, DHCP, DNS.
Bluetooth: Version 3.0+ EDR, profiles: HFP, A2DP.
Physical: Desk mount, wall mountable.
Power Source: 802.3af PoE (Class 2) or 48V DC adapter.
Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access menu via NAVIGATION CLUSTER or touch screen. Front Panel: MUTE, HEADSET, SPEAKERPHONE, VOLUME buttons.

Touch Screen: Call functions, contacts, call history, settings, directories.

Settings: Network configuration, Audio settings (handset, speaker, headset), Display brightness, Time/Date, Ring tones, Language. Phone: Line configuration, Speed dial setup, Call forwarding, Do Not Disturb. Security: Admin password, User password, Network security settings.

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: Wired to headset jack or Bluetooth pairing.

Turn off phone before connecting wired devices.
Match cables to ports (Ethernet to LAN/PC ports).
For Bluetooth: Enable in Settings > Bluetooth > Add Device.

Tip: Use quality CAT5e or CAT6 cables for network connections.

Advanced Call Features

Supports hold, transfer, conference, forward, park, pickup.

Make call: Lift handset or press SPEAKERPHONE, dial number.
Answer call: Press flashing line key, ANSWER softkey, or lift handset.
Hold: Press HOLD button during active call.
Transfer: Press TRANSFER, dial target number, press TRANSFER again.
Conference: Press CONFERENCE, dial first participant, press CONFERENCE again, dial second participant.
Forward: Access Call Forward settings to always, busy, or no answer forward.
Park: Press PARK or dial park code to place call in park orbit.
Call History: Access via touch screen to view missed, received, placed calls.

WARNING! Do not use phone with wet hands; keep liquids away from device.

Accessibility Features

Visual alerts: Flashing LED for incoming calls. Audio adjustments: Independent volume controls for handset, speaker, ringer. Hearing aid compatible: Handset meets HAC standards. Large text: Adjustable font size in display settings.

Care & Cleaning

Unplug from power before cleaning. Use slightly damp, lint-free cloth; no liquids or aerosols.

CAUTION! Do not spray cleaners directly on phone; avoid abrasive materials.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business environments. ICES-003: Complies with Canadian EMI regulations. CE Mark: Complies with European directives. Copyright © 2025 Cisco Systems, Inc. For support, visit www.cisco.com or contact Cisco Technical Assistance Center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	PoE/Power adapter	Check PoE switch or power adapter connection; try different outlet.
No network connectivity	Cable/DHCP	Check Ethernet cable; verify DHCP server is reachable.
No audio	Volume/mute	Adjust volume controls; check MUTE status; verify audio codec settings.
Phone not registering	Configuration/server	Verify extension and server settings; check network firewall.
Bluetooth not pairing	Distance/settings	Ensure device is in pairing mode and within range; enable Bluetooth on phone.

Reset: Settings > Admin Settings > Reset to factory defaults (requires password).

Service: Cisco Technical Assistance Center; www.cisco.com/support