The GXW4216/24/32/48 is the next generation high-performance and high-density analog VoIP gateway fully compliant with the SIP standard and interoperable with various VoIP systems, analog PBX, and market telephones. It features multiple FXS ports for analog phones, excellent audio quality, rich telephony features, easy installation, flexible call plans, advanced security protection, and robust performance in managing high volumes of voice calls.

• GXW4216/24/32: x RJ11 FXS ports and 1/1/2 x 50 pin Telco connections
• GXW4248: 2 50 pin Telco connections
• Gigabit Ethernet and backlit 128x32 graphic LCD display with multi-language support
• 4 SIP Server profiles per system and independent SIP account per port

Specifications:

• Phone Interfaces: 16 x RJ11 & 1/50-pin Telco connections
• Network Interfaces: 1 x 10M/100M/1000Mbps auto-sensing RJ45 port
• LED Indicators: LAN Link, LAN Activity
• LCD Display: Backlit 128x32 graphic LCD with multi-language support
• Voice-over-Packet Features: Acoustic echo cancellation, dynamic jitter buffer, modem detection & 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: T.38 compatibility, Group 3 Fax Relay up to 14.4kbps
• Telephony Features: Caller ID display or concealment, call waiting, call transfer, voicemail
• QoS: DiffServ, TOS, 802.1P/Q VLAN tagging
• Network Protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP
• DTMF Methods: Flexible DTMF transmission modes including in-audio, RFC2833
• Signaling: SIP (RFC 3261) via UDP/TCP/TLS
• SIP Server Profiles & Accounts per System: 4 distinct SIP server profiles
• Provisioning: TFTP, HTTP
• Security: SRTP, TLS/SIPS, HTTPS, 802.1x
• Management: Syslog, HTTPS, Web browser, voice prompts
• Certification: FCC, CE
• Dimensions: 440mm (W) x 185mm (D) x 44mm (H)
• Unit Weight: 2.39 kg
• Package Weight: 3.48 kg