Manuale Cisco IP Phone 303

The Cisco IP Phone 303 is a single-line business IP phone designed for basic voice communication in an enterprise environment. It features a high-quality handset and speakerphone, support for Power over Ethernet (PoE), a dedicated Ethernet port for a PC connection, and integration 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 to Network 7. Making and Receiving Calls 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Handset, Speakerphone, LCD display, Navigation button, Volume control, Ethernet ports, Power port.

Feature	Description
Handset	High-quality receiver for private conversations
Speakerphone	Full-duplex speakerphone for hands-free communication
LCD display	2-line monochrome display for call information and status
Navigation button	For menu navigation and selection
Volume control	Adjusts handset, speakerphone, and ringer volume
Ethernet ports (SW, PC)	Network connection (SW) and PC pass-through (PC)
Power port	For external power adapter (if PoE not used)
Mute button	Mutes the microphone
Headset port	For optional headset connection (2.5mm)
Message Waiting Indicator	LED indicates voicemail messages

Installation

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

Connect to network: Plug Ethernet cable from switch into SW port on phone.
Connect PC (optional): Plug Ethernet cable from PC port on phone to computer.
Connect handset: Attach coiled handset cord to phone and handset.
Power the phone: Use Power over Ethernet (PoE) or connect external power adapter.

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

First-Time Setup

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

Check registration: Observe LCD for extension number and "Registered" status.
Set language: Use Settings menu to select preferred language (default is English).
Configure ring tone: Navigate to User Preferences > Ring Type to select tone.
Set date and time: Usually synchronized from network; verify in Settings.

CAUTION! Do not disconnect during boot process. Allow phone to complete registration.

Specifications

Display: 2-line monochrome LCD with backlight.
Network: 10/100 Mbps Ethernet, IEEE 802.3af PoE compliant.
Audio: G.711, G.729a audio codecs supported.
Ports: Two 10/100 Ethernet (SW, PC), 2.5mm headset, DC power.
Protocols: SIP or SCCP (Skinny) depending on configuration.
Power Source: 802.3af PoE or 48V DC 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 menu via Navigation button. Front buttons: Mute, Volume, Navigation, Message.

Basic Controls: Lift handset or press Speaker button to get dial tone. Use keypad to dial. Press Mute to disable microphone. Adjust volume with Volume button during call.

Settings Menu: Navigate using Navigation button. Options include Ring Type, Network Configuration (view only), User Preferences (contrast, language), Status (IP address, firmware).

Connecting to Network

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

Ensure switch supports PoE or have power adapter ready.
Connect Ethernet cable from network outlet to SW port.
For PC connection, use second cable from PC port to computer's Ethernet port.
Power on; phone should obtain IP via DHCP and register.

Tip: Verify link LEDs are lit on Ethernet ports. Green indicates active connection.

Making and Receiving Calls

Basic telephony functions.

Make call: Lift handset or press Speaker, dial number, wait for connection.
Answer call: Lift handset, press Speaker, or press Answer softkey if displayed.
End call: Hang up handset or press Speaker button again.
Hold: Press Hold button during call; resume by pressing Resume.
Transfer: During call, press Transfer, dial target number, press Transfer again.
Conference: During call, press Conference, dial second party, press Conference again to merge.
Redial: Press Redial or dial ** to call last dialed number.
Voicemail: Press Messages button or dial voicemail access number.

WARNING! Do not use phone with wet hands. Keep liquids away from device.

Accessibility Features

Visual Alert: Flashing Message LED for voicemail. Audio Adjustments: Independent volume control for ringer, handset, speaker. Headset Support: Connect compatible headset for hands-free operation.

Care & Cleaning

Unplug power before cleaning. Use soft, dry cloth; do not use liquids or abrasive cleaners.

CAUTION! Avoid cleaning agents. Keep phone away from excessive heat, humidity, and dust.

Regulatory Information

FCC Part 15: Class B digital device; complies with limits for residential installation. CE marked for European compliance. Copyright © Cisco Systems, Inc. All trademarks are property of their respective owners. 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; try different outlet.
No dial tone	Network/registration	Verify Ethernet cable; check LCD for "Registered" status; restart phone.
Cannot hear caller	Volume/mute	Adjust volume; ensure mute is off; test with handset and speaker.
Caller cannot hear you	Microphone mute	Disable mute; ensure handset cord is fully connected.
Display is blank	Power/backlight	Check power; adjust display contrast in Settings menu.

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

Service: Cisco support: www.cisco.com/support. Refer to model number CP-303.