Grandstream FXS Gateway 4 Port

The Grandstream GXW4004 is a 4-port FXS VoIP gateway designed to integrate traditional analog telephony devices—such as phones and fax machines—into modern IP-based communication systems. It's particularly suitable for small to medium-sized businesses aiming to merge legacy PSTN infrastructure with VoIP solutions.

📦 Technical Specifications

FXS Ports: 4 RJ11 interfaces​

Network Interfaces: 2 RJ45 10/100 Mbps Ethernet ports

Voice Codecs: G.711 (a/μ-law), G.723, G.726, G.729a/b/e, iLBC​

If you need assistance with setup, compatibility inquiries, or exploring alternative models like the HT814 or GXW4200 series, feel free to ask!