Cisco 7945 Phone Manual

The Cisco 7945 is a business-class IP phone featuring a high-resolution color display, support for multiple lines, built-in Gigabit Ethernet switch, Power over Ethernet (PoE) capability, integrated speakerphone, headset port, and support for advanced call features like call hold, transfer, conference, and voicemail. It operates on Cisco Unified Communications Manager (CUCM) and is designed for enterprise VoIP environments. 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: High-resolution color display, Handset, Speakerphone, Line buttons, Navigation cluster, Softkeys, Headset port, Ethernet ports.

Feature	Description
Display	High-resolution color LCD with backlight
Line/Feature buttons	Dedicated buttons for multiple lines and features
Speakerphone	Full-duplex speakerphone for hands-free calls
Headset port	2.5mm port for wired headset connection
Ethernet ports	Two 10/100/1000 Mbps ports (LAN, PC)
Power options	Power over Ethernet (PoE) or external power adapter
Navigation cluster	Directional pad for menu navigation
Softkeys	Context-sensitive buttons for call functions
Volume control	Dedicated rocker for handset, speaker, and ringer volume
Mute button	Mutes microphone during calls

Installation

Unpack and inspect contents. Place phone on stable surface.

Connect network: Use Ethernet cable to connect LAN port to network switch.
Connect PC (optional): Use second Ethernet cable from PC port to computer.
Connect handset: Plug coiled handset cord into handset port.
Power on: Phone will boot via PoE or external power adapter.

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

First-Time Setup

Phone will automatically register with Cisco Unified Communications Manager (CUCM).

Check registration: Look for extension number on display after boot.
Set user preferences: Press Settings button to configure ringtone, display contrast, etc.
Configure voicemail: Press Messages button to set up voicemail access.
Test call: Make a test call to verify audio quality.

CAUTION! Do not unplug during firmware upgrade. Allow phone to complete boot process.

Specifications

Display: High-resolution color LCD, 320 x 240 pixels.
Network: 10/100/1000 Mbps Ethernet, IEEE 802.3af PoE.
Audio: Wideband audio support, G.711, G.729 codecs.
Ports: Two Ethernet, headset (2.5mm), handset.
Protocols: SIP, SCCP, 802.1X, LLDP, CDP.
Power Consumption: Up to 6.3W (PoE Class 2).
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 or web interface. Front Panel: Handset, Speakerphone, Mute, Volume rocker, Navigation cluster.

Buttons: Line buttons, Hold, Transfer, Conference, Messages, Settings, Headset, Speakerphone.

Display Settings: Contrast, backlight timeout, screen saver. Audio Settings: Ringtone selection, volume levels, audio mode. Network Settings: IP configuration (DHCP/static), VLAN. Phone Settings: Date/time format, language, user information.

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: 2.5mm plug to headset port.

Power off phone before connecting devices.
Use Cat5e or better Ethernet cables.
For headset, ensure compatibility with 2.5mm connection.

Tip: Label cables for easy identification during maintenance.

Advanced Call Features

Supports hold, transfer, conference, call forwarding, voicemail.

Make call: Lift handset or press Speakerphone, dial number.
Hold: Press Hold button during active call.
Transfer: Press Transfer, dial target number, press Transfer again.
Conference: Press Conference, dial participant, press Conference again to merge.
Call forwarding: Configure via phone settings or CUCM.
Voicemail: Press Messages button to access.
Redial: Press Redial or navigate to recent calls list.
Speed dial: Assign numbers to line buttons via settings.

WARNING! Do not use liquid cleaners on buttons. Use dry cloth only.

Accessibility Features

Visual alerts: Flashing LED for incoming calls. Audio adjustments: Separate volume controls for ringer, handset, speaker. Headset mode: Enable for hands-free operation.

Care & Cleaning

Unplug from power before cleaning. Use slightly damp cloth for exterior; dry immediately.

CAUTION! Do not spray liquids directly on phone. Avoid abrasive cleaners.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for commercial use. Copyright © Cisco Systems, Inc. All rights reserved. For support, visit www.cisco.com or contact Cisco Technical Assistance Center (TAC).

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display/power	Power source	Check PoE switch or power adapter; verify cable connections.
No network connectivity	Cable/config	Check Ethernet cable; verify IP address via Settings > Network.
No audio	Volume/mute	Adjust volume rocker; check mute status; verify handset connection.
Cannot make/receive calls	Registration	Check CUCM registration status; verify network connectivity.
Poor audio quality	Network/codec	Check network for packet loss; verify codec configuration in CUCM.

Reset: Press and hold # key during boot for factory reset (use caution).

Service: Contact Cisco TAC; www.cisco.com/go/support