Cisco IP Phone 7915 Manual

The Cisco IP Phone 7915 is a single-line, wall-mountable IP phone designed for basic voice communication in enterprise environments. It features a monochrome display, integrated Ethernet switch, Power over Ethernet (PoE) support, and compatibility with 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: Monochrome LCD display, Handset, Keypad, Ethernet ports, Wall-mount bracket.

Feature	Description
Display	2-line monochrome LCD for call information and status
Handset	Standard handset with microphone and speaker
Keypad	12-button dial pad with additional feature keys
Ethernet Ports	10/100 Mbps switch with PoE support (802.3af)
Wall Mount	Includes bracket for wall installation
Power Options	Power over Ethernet or external power adapter
Headset Port	2.5mm headset jack for hands-free operation
Message Waiting Indicator	LED for visual voicemail notification
Volume Control	Buttons for handset and speaker volume adjustment
Mute	Button to mute microphone during calls

Installation

Unpack and inspect contents. Choose desktop or wall mount location.

Connect to network: Use Ethernet cable from switch to phone's SW port.
Connect PC: Use second Ethernet cable from phone's PC port to computer.
Connect handset: Plug coiled handset cord into handset jack.
Apply power: Use PoE from switch or connect external power adapter.
Wall mount: Attach bracket to wall, then secure phone to bracket.

WARNING! Use only approved power sources. Ensure proper ventilation.

First-Time Setup

Phone will boot and register with Cisco Unified Communications Manager.

Verify network connectivity: Check Ethernet link lights.
Check registration: Display should show extension number after boot.
Configure settings: Use web interface or phone menu to set time, date, ring tone.
Test call: Dial another extension to verify audio quality.

CAUTION! Do not disconnect during firmware upgrade.

Specifications

Dimensions: 8.3 x 7.1 x 2.0 inches (210 x 180 x 50 mm).
Weight: 2.2 lbs (1.0 kg).
Display: 2-line monochrome LCD with backlight.
Network: 10/100 Mbps Ethernet, IEEE 802.3af PoE.
Protocols: SIP, SCCP (Skinny).
Audio Codecs: G.711, G.729.
Power Consumption: 5W maximum with PoE.
Operating Temperature: 32°F to 104°F (0°C to 40°C).
Humidity: 10% to 90% non-condensing.

Controls and Settings

Access settings via phone menu or web interface.

Front Panel: LCD display, Soft keys, Navigation button, Volume buttons, Mute, Headset, Speakerphone.

Key Functions: - **Messages:** Access voicemail. - **Settings:** Enter configuration menu. - **Directory:** View call history and contacts. - **Services:** Access XML services. - **Volume Up/Down:** Adjust handset, speaker, or ringer volume.

Menu Settings: Network configuration, Time/Date, Ring tone selection, Display contrast, Language (English default).

Connecting Devices

Network: SW port to network switch. PC: PC port to computer. Headset: 2.5mm jack.

Ensure phone is powered off before connecting cables.
Use Cat5e or better Ethernet cables.
For PoE, verify switch provides 802.3af power.
Connect headset for hands-free operation.

Tip: Label cables for easy identification.

Using Phone Features

Basic call functions and advanced features.

Make call: Lift handset or press Speakerphone, dial number.
Answer call: Lift handset or press Speakerphone/Answer soft key.
End call: Hang up handset or press EndCall soft key.
Hold: Press Hold button during active call.
Transfer: Press Transfer, dial target number, press Transfer again.
Conference: Press Conference, dial participant, press Conference again.
Voicemail: Press Messages button, follow prompts.
Redial: Press Redial or navigate to call history.
Mute: Press Mute button during call (LED indicates active).
Volume adjustment: Use Volume buttons during call or while idle.

WARNING! Do not use damaged handset cords.

Accessibility Features

Adjustable ring volume and tone. Visual message waiting indicator. Headset compatibility for hands-free use.

Care & Cleaning

Disconnect power before cleaning. Use soft, dry cloth. Do not use liquids or abrasive cleaners.

CAUTION! Avoid moisture entering phone openings.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	PoE/Power adapter	Check Ethernet cable; verify PoE switch enabled; try power adapter.
No display	Power/Contrast	Check power source; adjust display contrast in settings.
No network connectivity	Cables/Configuration	Verify cable connections; check network settings.
No dial tone	Registration/Line	Check phone registration status; verify line configuration.
Poor audio quality	Network/Handset	Check network QoS; test with different handset.
Cannot make calls	Dial plan/Permissions	Verify dial plan configuration; check calling permissions.

Reset: Unplug power, wait 10 seconds, reconnect.

Service: Contact Cisco TAC or authorized service provider.