Polycom VVX 250 User Manual

The Polycom VVX 250 is a business media phone featuring a color touchscreen, high-definition voice, support for up to 12 lines, Power over Ethernet (PoE), USB connectivity, integrated Gigabit Ethernet switch, and compatibility with various VoIP platforms. 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: Color touchscreen display, Handset, Base unit, Ethernet ports, USB port, Headset jack, Power adapter port.

Feature	Description
Color touchscreen	3.5-inch display for call management and settings
HD Voice	Wideband audio for crystal-clear conversations
Line support	Up to 12 SIP lines or call appearances
Power over Ethernet (PoE)	IEEE 802.3af compliant for single-cable power and data
Gigabit Ethernet switch	Integrated switch with two 10/100/1000 Mbps ports
USB port	For connecting USB devices or Wi-Fi adapters
Headset jack	3.5mm jack for wired headset connection
Speakerphone	Full-duplex speakerphone with acoustic echo cancellation
Conference calling	Support for multi-party audio conferences
Programmable keys	Configurable soft keys and line keys

Installation

Unpack and inspect contents. Place on stable surface.

Connect to network: Use Ethernet cable to connect LAN port to network switch.
Power the phone: Use PoE from switch or connect power adapter to DC port.
Connect handset: Plug handset cable into dedicated jack on base.
Optional headset: Connect to 3.5mm headset jack.

WARNING! Use only approved power adapter. Ensure proper ventilation around device.

First-Time Setup

Power on phone; follow on-screen prompts.

Network configuration: Phone will attempt DHCP; check network connectivity.
Server configuration: Enter SIP server details provided by your administrator.
User credentials: Enter username and password for your extension.
Test call: Make a test call to verify audio quality and registration.

CAUTION! Handle handset cord carefully to avoid damage to connectors.

Specifications

Display: 3.5-inch color TFT LCD touchscreen.
Audio Codecs: G.711, G.722, G.729, Opus.
Network Interfaces: Dual 10/100/1000 Mbps Ethernet ports with integrated switch.
Power: PoE (802.3af) or 5V DC power adapter.
Protocols: SIP, TLS, SRTP, LLDP-MED.
USB: USB 2.0 host port.
Dimensions: 8.3 x 7.9 x 5.9 inches (210 x 200 x 150 mm).
Weight: 2.2 lbs (1 kg).
Operating Temperature: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access settings via touchscreen menu or physical buttons. Front Panel: Mute, Speakerphone, Volume controls, Navigation keys.

Touchscreen Interface: Home screen with call lines, Contacts, Call history, Settings access.

Basic Settings: Time/Date, Language, Display brightness, Ring tones. Network: IP configuration, VLAN, QoS. Audio: Handset volume, Speaker volume, Ringer volume, Audio mode. Advanced: SIP settings, Security, Firmware upgrade, Restore defaults.

Connecting Devices

Network: Ethernet cable to LAN port. PC: Connect PC to PC port for pass-through networking. Headset: 3.5mm jack.

Ensure phone is powered off before connecting devices.
Use Cat5e or better Ethernet cables for Gigabit performance.
For PoE, verify switch provides adequate power (15.4W).

Tip: Use the PC port to connect your computer and save a network wall port.

Using Phone Features

Supports basic and advanced telephony features.

Making calls: Dial number using on-screen keypad or select from contacts/history.
Answering calls: Tap Answer on screen or press Speakerphone key.
Hold: Press Hold button during active call.
Transfer: During call, press Transfer, dial target number, press Transfer again.
Conference: During call, press Conference, dial second party, press Conference to merge.
Voicemail: Press Messages key or dial voicemail access number.
Contacts: Add/edit contacts via touchscreen interface.
Call history: View missed, received, and dialed calls.

WARNING! Do not expose phone to liquids. Keep food and drinks away from device.

Accessibility Features

Visual alerts: Flashing LED for incoming calls. Audio adjustments: Separate volume controls for handset, speaker, ringer. High-contrast display: Adjustable display settings for improved visibility.

Care & Cleaning

Unplug before cleaning. Use slightly damp, lint-free cloth for display and body. Do not use abrasive cleaners or solvents.

CAUTION! Never spray liquids directly on phone. Avoid extreme temperatures and humidity.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business environments. CE marked for European compliance. Polycom and the Polycom logo are trademarks of Polycom, Inc. For support, visit www.polycom.com/support or contact your authorized Polycom reseller.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power source	Check PoE switch or power adapter connection; verify outlet power.
No network connectivity	Cable/config	Check Ethernet cable; verify network settings; restart phone.
No audio	Volume/mute	Check volume settings; ensure mute is off; verify handset connection.
Cannot register to server	Credentials/server	Verify SIP credentials; check server address; confirm network connectivity.
Touchscreen not responsive	Calibration	Restart phone; perform touchscreen calibration in settings.

Reset: Settings > Advanced > Administration > Reset to factory defaults.

Service: Contact Polycom support or your system administrator for technical assistance.