Grandstream GXW4216 16-Port FXS Analog VoIP Gateway

The Grandstream GXW4216 is a high-performance, 16-port analog VoIP gateway designed to connect traditional analog phones and fax machines to an IP telephony system. It’s ideal for businesses looking to retain legacy devices while transitioning to a modern VoIP infrastructure. With rich telephony features, advanced security, and easy deployment, the GXW4216 offers a reliable, scalable, and cost-effective solution for large analog integrations.

Key Features:

• 16 FXS ports with support for 16 SIP accounts (1 per port)

• 1 Gigabit Ethernet port with NAT router functionality

• Backlit LCD display for status monitoring and configuration

• Multiple voice codecs supported including G.711, G.723, G.729, G.726, Opus, and G.722

• T.38 Fax-over-IP with fallback to G.711 for fax reliability

• Advanced telephony features: call forwarding, call waiting, 3-way conferencing

• TLS and SRTP encryption for secure communications

• PSTN failover support to maintain phone access during power/network outages

• Automated provisioning via TR-069, HTTP, and HTTPS

• Rack-mountable design with easy setup and management