Grandstream GXW-4008

The GXW series offers the small enterprise, SOHO, remote offices and multi-location enterprises a cost-effective, easy to deploy VoIP FXS analog gateway.

Designed and tested for full interoperability with leading IP-PBXs, Softswitches and most SIP-based environments, the GXW technology ensures manageability, a simple configuration, and superb voice quality. GXW Series IP Gateway is based on open industry standards.

• 8 FXS analog port gateways
• Two RJ-45 ports (switched or routed)
• TFTP and HTTP firmware upgrade support
• Supports Audio Codecs: G711, G723, G729 and GSM
• T.38 compliant
• Web management for easy configuration and installation

Interfaces

• Telephone Interfaces
  • 8 RJ11 FXS ports
• Network Interfaces
  • 10M/100Mbps
  • Dual RJ45 ports
• Admin Console Interface
  • RS232 Serial Port
• LED Indicators
  • Power
  • Network
  • Line LEDs

Voice, Fax, Modem

• Voice Over Packet Capabilities
  • G.168 complaing Echo Cancellation
  • Dynamic Jitter Buffer
  • Modem detection
  • Auto-switch to G.711
• PSTN Fail-over Life Line
  • PSTN Failover on power failure
• Voice Compression
  • G.711
  • G.723
  • G.726 (40/32/24/16)
  • G.729A/B/E
  • G.728
  • iiBC
• DHCP Client Server
  • Nat Router or Switched Mode
• Fax over IP
  • T.38 complaint Group 3 Fax Relay up to 14.4kpbs
  • Auto-switch to G.711 for Fax Pass-through (pending)
• QoS
  • Diffserve
  • TOS
  • 802.1P/Q VLAN tagging
• IP Transport
  • RTP
  • RTCP

Signaling

• DTMF Method
  • Felxible DTMF transmission method
  • User Interface of in-audio
  • RFC2833
  • SIP Info
• IP Signaling
  • SIP (RFC 3261)
• Multiple SIP server profiles and accounts per box
  • Up to 2 distinct SIP server profiles per system
  • Independent SIP account per port
• Provisioning
  • TFTP
  • HTTP
  • HTTPS (pending)

Security

• Media
  • SRTP not available
• Control
  • TLS/SIPS
• Management
  • Syslog supprt
  • HTTPS
  • Telnet
  • Remote Management using Web Browser

Physical

• Power
  • Output: 12VDC
  • Input: 100-240 VAC/ 50-60Hz
• Environmental
  • Operational: 32-104 Farenheit or 0-40 Celsius
  • Storage: 14-140 Farenheit or -10-60 Celsius
  • Humidity: 10-90% Non-condensing
• Dimensions
  • 230mm x 135mm x 35mm
• Mounting
  • Wall mount & desktop

Additional Features

• Short and long haul
  • REN3: uP TO 150FT ON 24 AWG LINE
• Caller ID
  • Bellcore Type 1 & 2
  • ETSI
  • BT
  • NTT
  • DTMF-based CID
• Polarity Reversal /Wink
  • Yes

Homologation

• EMC
  • EN55022/EB55024
  • FCC part15 Class B
• Safety
  • UL

Ships With

• GXW 4008Analog IP Gateway
• Ethernet cable
• 12V universal power adapter

voxilla.com Grandstream Users Group discussion forum

Known Issues

• It always queries the provisioning configuration file using the MAC address associated to the LAN interface even when only the WAN interface is plugged to the network;
• it is not possible to use a sub path when using provisioning via UDP, you can only specify an IP address or an host name;
• Generation of DTMF on FXS port (RFC2833) is either not done or incorrect (very short tone, and rapid dtmf events cause wrong dtmf sequence). When using with a phone this is not a problem, but when using to feed an analog PBX that has an IVR it causes failures.

Configuration Tips

• DHCP Server on the LAN port can be enabled/disabled with option P5001 (# Enable LAN DHCP. 0 – No, 1 – Yes)
• To see all config fields without the template, log into the web gui and view the HTML page source (CTRL-U in Firefox)
• When naming config files for provisioning, use the MAC address printed on the label on the bottom of the device (same as the one on the box)
• Serial settings for console port: 115,200bps, 8,N,1, flow control off