Grandstream GXW4004 IP Analog Gateway
The GXW4004 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 GXW4004 features 4-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
4 FXS ports
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