manual telefono cisco ip phone 7911

The Cisco IP Phone 7911 is a single-line, entry-level IP phone designed for basic voice communication in business environments. It features a simple keypad, a pixel-based display, support for Power over Ethernet (PoE), and integration with Cisco Unified Communications Manager. Below are key sections covering safety, features, installation, configuration, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Network 7. Basic Operation 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Handset, Base unit, Keypad, Display, Ethernet ports, Power adapter (if not using PoE).

Feature	Description
Handset	Standard telephone handset with receiver
Keypad	12-button dial pad for numeric input
Display	Pixel-based screen for call information and status
Ethernet Ports	Two 10/100 Mbps ports (network and PC pass-through)
Power over Ethernet (PoE)	IEEE 802.3af compliant for power via network cable
Speakerphone	Built-in for hands-free communication
Volume Control	Buttons for adjusting handset, speaker, and ringer volume
Headset Port	2.5mm jack for optional headset connection
Message Waiting Indicator	LED for visual voicemail notification
Hold Button	Places active call on hold

Installation

Unpack and inspect contents. Place on stable surface near network outlet.

Connect to network: Plug Ethernet cable from switch into phone's NETWORK port.
Connect PC (optional): Use second Ethernet cable from phone's PC port to computer.
Power the phone: Use Power over Ethernet (PoE) from switch or connect external power adapter.
Connect handset: Plug coiled handset cord into handset jack.

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

First-Time Setup

Power on phone; it will boot and attempt to register with Cisco Unified Communications Manager.

Network registration: Phone obtains IP address via DHCP and contacts call control server.
Verify registration: Check display for extension number and "Registered" status.
Configure settings: Use phone's settings menu or web interface (if enabled) for language, time format.
Test call: Dial another extension or external number to verify audio.

CAUTION! Do not disconnect during boot process. Ensure network configuration is correct.

Specifications

Phone Type: Single-line IP Phone.
Network: 10/100 Mbps Ethernet, IEEE 802.3af PoE.
Protocols: SIP or SCCP (depending on firmware).
Audio: G.711, G.729 codecs; full-duplex speakerphone.
Display: Pixel-based, 2-line capability.
Power: 48V DC via PoE or external power adapter.
Connectors: Two RJ-45 Ethernet, RJ-9 handset, 2.5mm headset.
Operating Temp: 32°F to 104°F (0°C to 40°C).
Compliance: FCC Part 15, UL, CE.

Controls and Settings

Access settings via phone buttons or web interface. Front Panel: Handset, keypad, volume buttons, speakerphone, hold, settings.

Key Functions: Dial numbers, answer/end calls, adjust volume, mute, hold, transfer, conference (if configured).

Settings Menu: Network configuration (IP address, DHCP), time/date, ring tone selection, display contrast, language. Web Interface (if enabled): Advanced settings, firmware upgrade, status monitoring.

Connecting to Network

Network: RJ-45 to switch. PC: Pass-through to computer.

Turn off phone and devices before connecting.
Connect NETWORK port to switch using Ethernet cable.
For PC connection, use second cable from PC port to computer's network port.
Power via PoE or adapter; phone boots automatically.

Tip: Use Category 5e or higher cables for reliable connectivity.

Basic Operation

Supports making, receiving, and managing calls.

Make call: Lift handset or press Speakerphone, dial number, press Dial softkey or wait.
Answer call: Lift handset, press Speakerphone, or press Answer softkey.
End call: Hang up handset or press EndCall softkey.
Hold: Press Hold button to place call on hold; resume by pressing Hold again.
Mute: Press Mute button during call to mute microphone.
Adjust volume: Use volume buttons for handset, speaker, or ringer.
Transfer call: During active call, press Transfer, dial target number, press Transfer again.
Conference call: During active call, press Conference, dial participant, press Conference again.

WARNING! Do not expose to liquids. Use only approved accessories.

Accessibility Features

Volume Boost: Increase handset/speaker volume in settings. Ringer Selection: Choose from multiple tones. Visual Alerts: Message waiting LED for missed calls/voicemail.

Care & Cleaning

Unplug from power before cleaning. Use dry, soft cloth; avoid liquids or abrasive cleaners.

CAUTION! Do not spray directly; keep away from heat sources and moisture.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Cisco Systems, Inc.; trademarks owned by Cisco. For support, visit www.cisco.com or contact Cisco Technical Assistance Center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Phone not powering on	Power source/cable	Check PoE switch or power adapter; ensure cable is connected securely.
No dial tone	Network/registration	Verify network connection; check display for "Registered" status; restart phone.
Poor audio quality	Network congestion/cables	Check network bandwidth; replace handset/headset cable; adjust volume.
Display blank or dim	Power/settings	Ensure power is on; adjust display contrast in settings menu.
Cannot make/receive calls	Configuration	Verify phone is registered with call manager; check extension assignment.

Reset: Unplug power, wait 10 seconds, reconnect. For factory reset, consult administrator.

Service: Contact Cisco Technical Assistance Center; www.cisco.com