GRANDSTREAM GXW4224 :: IP Analog Gateway

The GXW4224 is a next generation high performance high-density analog VoIP gateway that is fully compliant with SIP standard and interoperable with various VoIP systems, analog PBX and phones on the the market. It features multiple FXS analog telephone ports, superb voice quality, rich telephony functionalities, easy provisioning, flexible dialing plans, advanced security protection, and strong performance in handling high volume voice calls. The GXW42XX series gateway offers small and medium businesses a cost-effective hybrid IP and analog telephone system that allows them to enjoy the benefits of VoIP communications while preserving investment on existing analog phones, Fax machines and legacy PBX systems.

• Telephone Interfaces: GXW4224 x RJ11 FXS ports plus & 1 x 50 pin Telco connectors
• GXW4224  50 pin Telco connectors
• Network Interfaces: 1 x 10M/100M/1000Mbps auto-sensing RJ45 port
• Audio Codecs: G.711, G. 723, G.726 (40/32/24/16), G.729A/B/E, iLBC
• LED Indicators: LAN Link, LAN Activity, Per Telephone port
• LCD Display Backlit: 128x32 grpahic LCD display with support for multiple languages
• Voice-over-Pack Capabilities: G.168 carrier grade line echo cancellation, dynamic jitter buffer, modem detection & auto-switch to G.711
• Voice Compression: G.711, G.723, G.726, G.729 A/B, iLBC
• Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through, Fax Datapump V.17, V.21, V27ter, V29 for T.38 fax relay
• Telephony Features: Caller ID display or block, call waiting, blind or attended transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED (NEON LED) support and stutter tone, auto dial, flexible dial plan
• QoS: DiffServ, TOS, 802.1P/Q VLAN tagging
• Network Protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, PPPoE, STUN, LLDP
• DTMF Method: Flexible DTMF transmission methods including In-audio, RFC2833, and /or SIP INFO
• Singaling: SIP (RFC 3261) over UDP/TCP/TLS
• SIP Server Profiles & Accounts Per System: 4 distinct SIP server profiles per system and independent SIP account per telephone port
• Provisioning: TFTP, HTTP, HTTPS, TR069