Grandstream Networks GXW4004 IP Analog Gateway, 4 Port FXS, Dual 10M/100M Network Ports, 2 x RJ-45 Ports

The Grandstream GXW4004 IP Analog Gateway (4 Port FXS) 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 GXW4004 features 4 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.