Poly VVX 250 Manual

The Poly VVX 250 is a versatile business IP phone designed for small to medium-sized businesses. It features a high-resolution color display, support for multiple lines, HD Voice, Power over Ethernet (PoE), USB connectivity, and integration with various VoIP platforms. Below are key sections covering features, installation, configuration, operation, and troubleshooting.

Features at a Glance

Key components: Color LCD display, Handset, Base unit, Ethernet ports, USB port, Headset jack, Volume controls.

Feature	Description
Color Display	High-resolution screen for call information and menus
HD Voice	Wideband audio for crystal-clear calls
Power over Ethernet (PoE)	Receives power and data through Ethernet cable
Multiple Lines	Supports up to 4 SIP lines
USB Port	For connecting accessories or firmware updates
Headset Jack	For hands-free communication
Gigabit Ethernet	High-speed network connectivity
Programmable Keys	Customizable buttons for speed dial or features
Speakerphone	Full-duplex speaker for conference calls
Wall Mountable	Includes wall mount kit for flexible installation

Installation

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

1. Connect to Network: Use Ethernet cable to connect LAN port to switch/router.
2. Power Connection: Use PoE switch or included power adapter.
3. Connect Handset: Plug handset cord into dedicated jack.
4. Optional Accessories: Connect headset to headset jack; USB device to USB port.

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

First-Time Setup

Power on phone; follow on-screen prompts.

1. Network Configuration: Phone will attempt DHCP; static IP can be configured via web interface.
2. Provisioning: Enter SIP server details provided by your service provider.
3. User Configuration: Set user extension, password, and display name.
4. Test Call: Make test call to verify audio quality and connectivity.

CAUTION! Secure all cables to prevent tripping hazards.

Specifications

• Display: 3.5-inch color LCD, 320 x 240 pixels.
• Audio: HD Voice (wideband), G.722 codec support.
• Network: Dual 10/100/1000 Mbps Ethernet ports with PoE (802.3af).
• Protocols: SIP over TCP/UDP, TLS, SRTP.
• Power: PoE (802.3af) or 5V DC power adapter.
• Connectors: 2x Ethernet (LAN/PC), USB 2.0, headset, handset.
• Programmable Keys: 4 line keys with LEDs.
• Dimensions: 8.5 x 8.5 x 6.5 inches (desktop).
• Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Access menu via navigation button. Front Panel: LCD display, Navigation button, Volume keys, Speakerphone, Mute, Headset.

Programmable Keys: Line keys for calls, speed dial, or features.

Settings Menu: Network (IP, DHCP, VLAN), SIP (server, authentication), Audio (volume, ring tones), Time (time zone, NTP), Features (call forward, DND). Web Interface: Advanced configuration via browser (default IP shown on screen).

Connecting Devices

Network: LAN port to switch; PC port to computer. Accessories: Headset, USB devices.

1. Turn off phone before connecting accessories.
2. Match cables to ports (Ethernet to LAN, handset to handset jack).
3. Verify connections are secure.

Tip: Use quality Ethernet cables for best performance.

Using Phone Features

Supports basic and advanced telephony features.

1. Making Calls: Lift handset or press Speakerphone; dial number.
2. Receiving Calls: Answer by lifting handset or pressing Speaker/Answer key.
3. Hold: Press Hold button during active call.
4. Transfer: Press Transfer, enter destination number, complete transfer.
5. Conference: Setup multi-party conference calls.
6. Call Forward: Configure via menu or web interface.
7. Voicemail: Access via voicemail key or dial code.
8. Directory: Store and access contacts.

WARNING! Do not expose phone to liquids. Keep away from heat sources.

Accessibility Features

Visual Alerts: LED indicators for missed calls. Audio Adjustments: Volume controls for ringer, speaker, handset. TTY Support: Compatible with teletype devices.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth; avoid harsh chemicals.

CAUTION! Do not spray liquids directly on phone. Keep vents clear.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE, RCM, UKCA marked. Copyright © Poly. For support, visit www.poly.com/support or contact your service provider.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power source	Check PoE switch or power adapter; ensure cable connected.
No network	Cable/DHCP	Check Ethernet cable; verify DHCP server; restart phone.
No audio	Volume/connections	Adjust volume; check handset/headset connection; verify codec.
Calls not connecting	SIP configuration	Verify SIP server settings; check username/password; contact provider.
Poor audio quality	Network/bandwidth	Check network congestion; verify QoS settings; test with different codec.

Reset: Press and hold # key during boot for factory reset.

Service: Contact service provider or visit www.poly.com/support