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Product Overview

Wireless 2.4G / 5G Wi-Fi 6
Built-in 2.4G/5G dual-band Wi-Fi 6 module for faster, more stable network connectivity. Compared with traditional Wi-Fi 4/5, Wi-Fi 6 brings major improvements in multi-device concurrency, low latency, and interference resistance, ensuring smooth 720P video intercom with no lag.

720P HD Video Intercom
Equipped with a 720P (1280×720) HD camera and a 2.8-inch IPS color display, the i503W delivers sharp, vivid visuals for residents. Even in low-light environments, the camera provides excellent image quality, helping residents accurately identify visitors.

5 Physical Shortcut Keys
The body features 5 programmable physical keys that can be configured for one-touch calling to property management, emergency assistance, security, and family contacts. Long-press and double-click trigger custom actions, making it easy for elderly users and children to operate.

ONVIF Security Integration
Native ONVIF support allows seamless integration with mainstream NVRs and IP cameras, turning the indoor station into a home security control center. Combined with door contacts, PIR sensors, and emergency buttons, it provides full-spectrum home protection.
Application Scenarios
Apartments / Residences
Serves as the indoor terminal of an apartment entry intercom system, supporting remote door release, video intercom, and property calling.
Villas
Multi-level family terminal with wireless flexibility — place anywhere on any floor, supporting instant communication for children and elderly family members.
Retrofit Projects
For legacy buildings where rewiring is difficult or impossible, the wireless design enables quick, non-intrusive upgrade of existing intercom systems — the first choice for retrofit projects.
Hospitals / Care Homes
In medical and elderly-care facilities, the 5 programmable keys enable one-touch calls to nurse stations, family, and emergency services. The wireless design allows easy relocation between rooms.
Specifications
| Screen | 2.8-inch IPS color display, 320×240 resolution |
|---|---|
| Camera | 720P (1280×720) HD camera |
| OS | Linux |
| SIP Lines | 2 SIP lines |
| Voice Codecs | G.711a / G.711μ / G.722 (wideband) / G.729AB / Opus |
| Video Codecs | H.264 / H.263 |
| Network | 10/100 Mbps Ethernet + Wi-Fi 6 (2.4G / 5G dual-band) |
| Wi-Fi Standard | IEEE 802.11 a/b/g/n/ac/ax |
| Bluetooth | Supported (depends on batch) |
| Keys | 5 programmable physical keys (incl. DSS / numeric / direction / confirm / back) |
| Protocols | SIP v1/v2, RFC3261, RFC2833, ONVIF, DHCP, PPPoE, 802.1x, STUN |
| Battery | Built-in rechargeable lithium battery |
| Charging Port | USB Type-C |
| Power Supply | DC 5V / 2A (Type-C) or PoE (depending on configuration) |
| Installation | Desktop placement |
| Dimensions | Approx. 167 × 116 × 28 mm (main unit) |
| Weight | Approx. 350 g |
| Operating Temperature | 0°C ~ 45°C |
| Relative Humidity | 10% ~ 90% (non-condensing) |
Official Datasheet · PDF format · Includes complete interface definitions, signaling flows, and ordering information
Product specifications are subject to the official Fanvil website.











