The GXW400x FXS Series is an ideal solution for businesses looking to connect one or more lines of a traditional PBX to a VOIP phone system or provider. The GXW400x features 4 or 8-port FXS interfaces for analog telephones, dual 10M/100M network ports with integrated router, PSTN life line in case of power failure, and an RS232 serial port for administration.

• Support for 2 SIP account profiles, caller ID for various countries/regions
• Support for T.38 fax, flexible dialing plans, security protection (SIPS/TLS), and comprehensive voice codecs

GXW42xx and GXW40xx Comparison Chart

• 4 and 8 FXS port media gateways
• Two RJ-45 ports 10/100 Mbps (switched or routed)
• Multiple SIP accounts (choice of 2 profiles per account)
• T.38 Fax compliant
• G.168 Echo Cancellation
• Voice Activation Detection (VAD)
• Comfort Noise Generation (CNG)
• Packet Loss Concealment (PLC)
• Supports PSTN/PBX analog telephone sets or analog trunks

User Manuals

GXW40xx User Manual

Quick Installation Guides

GXW40xx Quick Installation Guide

• Spanish
• French
• German
• Italian

Declaration of Conformity

Declaration of Conformity Grandstream GXW400X

Marketing Documents

Grandstream ATAs and Gateways Comparison Chart

FAQ

GXW IP Analog Gateway Series FAQ

White Papers

Using GXW-Series to extend analog lines without a SIP server

Peer-to-Peer Gateway with multiple HandyTones

Typical GXW- Series Scenario

GXW FXS Series Configuration with different scenarios

GXW-400x FXS Gateway Configuration - PBX Scenario

Grandstream TR-069 Information

Grandstream Provisioning Guide

How to Peer Two Analog PBXs Using GXW Series

Interoperability

Configuring Skype for Business using Grandstream CPE Devices

Skype Client and Skype for Business Guide

Power Consumption Datasheet

Firmware

Firmware Download

Tools

Free Grandstream Device Configuration Generation Tool

Grandstream Device IP Discovery Tool

GNU General Public License

GNU GPL Download