Cisco IP Phone 7945 User Manual

The Cisco IP Phone 7945 is a full-featured VoIP telephone designed for enterprise environments, featuring a high-resolution color display, support for multiple lines and calls, integrated Gigabit Ethernet switch, Power over Ethernet (PoE), speakerphone, headset connectivity, and programmable soft keys. It supports advanced telephony features including hold, transfer, conference, and voicemail access. 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. Making and Managing Calls 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-resolution color display, Handset, Speakerphone, Programmable soft keys, Navigation button cluster, Volume rocker, Headset port, Ethernet ports.

FeatureDescription
DisplayHigh-resolution color LCD for call information and menus
HandsetStandard handset with light strip for visual alerts
SpeakerphoneFull-duplex speakerphone for hands-free calls
Soft KeysProgrammable keys for call functions (Hold, Transfer, etc.)
Navigation ButtonFor scrolling through menus and lists
Volume RockerAdjusts handset, speakerphone, and ringer volume
Headset PortFor connecting a headset (modular jack)
Ethernet Ports10/100/1000 SW and PC ports for network connectivity
PowerPower over Ethernet (PoE) or external power adapter
Messages ButtonDirect access to voicemail

Installation

Unpack and inspect contents. Place phone on stable surface.

  1. Connect Network: Plug Ethernet cable from switch into SW port on phone.
  2. Connect Computer (optional): Plug Ethernet cable from PC port to computer.
  3. Connect Handset: Plug coiled handset cord into handset jack.
  4. Apply Power: Use PoE from switch or connect external power adapter.
  5. Connect Headset (optional): Plug headset into headset port.

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

First-Time Setup

Phone will boot and register with the call control system (e.g., Cisco Unified Communications Manager).

  1. Initial Boot: Wait for phone to initialize and display main screen.
  2. Check Registration: Verify extension number and status on screen.
  3. Set Preferences: Press Settings button to configure ring tones, display contrast, etc.
  4. Test Call: Lift handset and dial another extension to verify audio.
  5. Configure Voicemail: Press Messages button to set up voicemail password and greeting.

CAUTION! Do not unplug during firmware upgrade. Contact administrator for network settings.

Specifications

Controls and Settings

Access settings via the Settings button or phone web interface.

Front Panel: Handset, Display, Soft keys, Navigation button, Volume rocker, Messages, Settings, Headset, Mute, Speakerphone.

Display Icons: Show call status, voicemail, mute, speakerphone, headset, network.

Settings Menu: Ring Tone, Display Contrast, Network Configuration (admin), Time/Date, Language, Security (admin).

Call Features: Use soft keys for Hold, Transfer, Conference, Forward, Park.

Connecting Devices

Network: SW port to network switch. PC: PC port to computer. Headset: Headset port.

  1. Ensure phone is powered off or disconnected before connecting cables.
  2. Use standard Ethernet cables (Cat5e or higher).
  3. For PoE, ensure switch provides adequate power (15.4W).
  4. For headset, follow manufacturer's connection instructions.

Tip: Label cables for easy identification. Use cable management.

Making and Managing Calls

Basic and advanced call handling features.

  1. Make Call: Lift handset or press Speakerphone, dial number, or use directory.
  2. Answer Call: Lift handset, press Speakerphone, or press Answer soft key.
  3. End Call: Hang up handset or press EndCall soft key.
  4. Hold: Press Hold soft key to place active call on hold.
  5. Transfer: Press Transfer, dial target number, announce call, press Transfer again.
  6. Conference: Press Conference, dial participant, press Conference again to merge.
  7. Forward: Press Forward soft key or configure via menu to forward calls.
  8. Voicemail: Press Messages button to access voicemail system.

WARNING! Emergency calls may require direct dialing; know your local emergency number.

Accessibility Features

Visual Alerts: Handset light strip flashes for incoming calls. High-Contrast Display: Adjustable in settings. Hearing Aid Compatible: Handset is HAC rated. Volume Boost: Adjustable for handset, ringer, and speaker.

Care & Cleaning

Disconnect power before cleaning. Use a soft, dry cloth. For stubborn marks, dampen cloth with water only. Do not use cleaners or aerosols.

CAUTION! Do not allow moisture into openings. Avoid abrasive materials.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business use. This device must accept any interference received. Copyright © Cisco Systems, Inc. All rights reserved. For support, visit www.cisco.com or contact your network administrator.

Troubleshooting

SymptomPossible CauseCorrective Action
No display/powerPower sourceCheck PoE switch or power adapter connection; ensure cable is functional.
No network connectivityCable/configurationCheck Ethernet cables; verify switch port is active; contact admin for IP settings.
No dial toneRegistration/lineCheck phone registration status on display; contact administrator.
Poor audio qualityNetwork/deviceCheck network for packet loss; clean handset; try headset or speakerphone.
Voicemail not accessibleConfigurationVerify Messages button is programmed; contact administrator to configure voicemail.

Reset: Unplug power, wait 10 seconds, replug. For factory reset (admin only), press and hold # while plugging in power.

Service: Contact your network administrator or Cisco Technical Support.

Cisco IP Phone 7945 User Manual © - All Rights Reserved 2025