IP Phone 7911 Manual

The Cisco IP Phone 7911 is a single-line, entry-level IP phone designed for basic voice communication in an IP telephony network. 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 features, installation, configuration, operation, and troubleshooting.

Features at a Glance

Key components: Handset, Keypad, Pixel-based display, Message waiting indicator, Ethernet ports, Power port.

Feature	Description
Handset	Standard telephone handset with receiver
Keypad	12-button dial pad for entering numbers
Display	Pixel-based screen for call information and status
Message Waiting Indicator	LED light for voicemail notification
Ethernet Ports	Two 10/100 Mbps ports for network and PC connection
Power Port	For external power adapter (if PoE not used)
Speaker Button	Activates speakerphone mode
Mute Button	Mutes the microphone
Volume Control	Adjusts handset, speaker, and ringer volume
Settings Button	Accesses phone configuration menu

Installation

Unpack and inspect contents. Place on stable surface.

1. Connect to Network: Use Ethernet cable to connect the SW port to your network switch.
2. Connect PC (Optional): Use second Ethernet cable from PC port to your computer.
3. Power the Phone: Use Power over Ethernet (PoE) from switch or connect external power adapter.
4. Connect Handset: Plug handset cord into jack on back of phone.

WARNING! Ensure network switch supports PoE if using that method. Use only approved power adapter.

First-Time Setup

Phone will boot and register with Cisco Unified Communications Manager.

1. Check Registration: Wait for phone to display your extension number.
2. Set Language: Press Settings button, navigate to User Preferences > Language.
3. Adjust Ring Tone: Press Settings, select Ring Type, choose preferred tone.
4. Set Date and Time: Usually synchronized from network; verify on display.

CAUTION! Do not unplug during boot process. Contact administrator for network configuration.

Specifications

• Display: Pixel-based, 2-line capability.
• Network: 10/100 Mbps Ethernet, IEEE 802.3af PoE compliant.
• Protocols: SIP or SCCP (depending on configuration).
• Audio Codecs: G.711, G.729a.
• Ports: Two RJ-45 Ethernet, RJ-9 handset, DC power.
• Power Source: 48V DC via PoE or external power adapter.
• Operating Temp: 32°F to 104°F (0°C to 40°C).
• Compliance: FCC Part 15, UL, CE.

Controls and Settings

Access settings via Settings button. Front Panel: Handset, Keypad, Speaker button, Mute button, Volume control.

Display Indicators: Message waiting light, Line status.

Settings Menu: User Preferences (Language, Ring Type, Screen Contrast), Network Configuration (view IP, subnet), Device Information (MAC address, firmware).

Connecting to Network

Ethernet: SW port to network switch. PC: PC port to computer.

1. Turn off phone before connecting cables.
2. Use Cat5e or higher Ethernet cables.
3. Ensure switch port is configured for VoIP traffic.
4. Power on phone; check for network link light.

Tip: Label cables for easy identification. Verify PoE switch capability.

Making and Receiving Calls

Basic call functions.

1. Make Call: Lift handset or press Speaker, dial number, wait for connection.
2. Receive Call: Phone rings, lift handset or press Speaker to answer.
3. End Call: Hang up handset or press Speaker button.
4. Mute: Press Mute button during call; press again to unmute.
5. Adjust Volume: Use Volume control during call for handset/speaker volume.
6. Redial: Press Redial softkey or dial last number manually.
7. Hold: Press Hold softkey to place call on hold; press Resume to return.

WARNING! Emergency calls may require special configuration; verify with administrator.

Advanced Features

Voicemail: Message waiting light indicates new voicemail; dial voicemail access number. Call Forward: Configure via phone settings or administrator. Network Statistics: View via Settings > Network Configuration.

Care & Cleaning

Unplug before cleaning. Use dry, soft cloth; avoid liquids.

CAUTION! Do not use abrasive cleaners; keep away from moisture and extreme temperatures.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
Phone not powering on	Power source	Check PoE switch or power adapter connection; verify cable.
No dial tone	Network/registration	Check Ethernet cable; ensure phone registered with call manager.
Display blank	Power/contrast	Check power; adjust screen contrast in settings.
Cannot make calls	Configuration	Verify dial plan and extension configuration with administrator.
Poor audio quality	Network/connections	Check network for packet loss; ensure handset cord secure.

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

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