The Soundwin S200/S400 Series VoIP Gateway catalogue provides specifications, features, and configuration details for the residential SIP/H.323 gateway.
The Soundwin S200/S400 Series VoIP Gateway is a residential gateway that supports both SIP and H.323 protocols, offering 2 or 4 FXS/FXO ports, a four‑port Ethernet switch and built‑in NAT router for voice and data integration with the PSTN. It includes Smart‑QoS, NAT traversal, call hunting, and a web‑based graphical interface for remote management.
Key specifications include AC100V‑240V / DC12V 1.5A power input, dimensions of 260 × 130 × 35 mm, weight of 900 g, operating temperature 0 °C‑40 °C and humidity up to 90 % non‑condensing. The device supports multiple voice codecs (G.711, G.729AB, G.723), fax over T.30/T.38, and advanced IP features such as STUN, ENUM and symmetric RTP.
| Power Input | AC100V‑240V, DC12V/1.5A, 50/60 Hz |
|---|---|
| Operating Temperature | 0 °C ~ 40 °C |
| Operating Humidity | up to 90 % non‑condensing |
| Dimensions | 260 × 130 × 35 mm |
| Weight | 900 g (Aluminum) |
| Ethernet Ports | 4 LAN + 1 WAN |
| Telephony Ports | Quad RJ‑11 (FXS/FXO) configurations |
It supports G.711 (A‑law/µ‑law), G.729AB and G.723 (6.3 kbps / 5.3 kbps).
Yes, NAT traversal is built in, allowing operation behind any NAT/Firewall without additional configuration.
It can be configured as a 2‑port or 4‑port FXS/FXO gateway, with various combinations such as 4FXS, 3FXS+1FXO, 2FXS+2FXO, etc.