The GXW4216/24/32/48 device is a modern high-performance VoIP gateway with superior density of analog ports. It fully complies with the SIP standard and is compatible with various VoIP systems, analog PBXs, and telephones. It features multiple FXS ports, excellent sound quality, rich telephone functions, easy provisioning, flexible call plans, advanced attack protection, and significant performance in managing high volumes of voice calls.

• Phone ports: 16 x RJ11 and 1 x 50-pin Telco connectors
• Network interfaces: 1 x 10M/100M/1000Mbps auto-sensing RJ45 port
• LED indicators: LAN Link, LAN Activity, Connection Per Telephone Port
• Display: backlit 128×32 graphic LCD
• VoIP features: Line echo cancellation, dynamic jitter buffer, modem detection and automatic switch to G.711
• Voice compression: G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC
• Fax over IP: Compatible with T.38, up to 14.4kbps
• Telephone functions: CID display or blocking, call hold, call transfer, call forwarding, 3-way conference, and others
• Network protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, etc.
• Management: Syslog, HTTPS, web browser
• Environmental protection: Operating: 0 °C ~ 40 °C; Storage: -20 °C ~ 60 °C; Humidity: 10% ~ 90% (non-condensing)

Dimensions: 440mm (L) x 185mm (W) x 44mm (H), unit weight: 2.39 kg.