Grandstream GXW4502 2‑Port FXS VoIP Gateway

The Grandstream GXW4502 is a compact yet powerful analog‑to‑VoIP gateway featuring two FXS ports—ideal for small offices, home deployments, or remote locations needing reliable VoIP conversion for legacy analog devices. Equipped with essential telephony features and secure VoIP protocols, it delivers high-quality voice and fax integration in a space-efficient form factor.

Key Features:

• 2 FXS ports to connect two analog phones or fax machines

• Gigabit Ethernet port for fast, reliable network connectivity

• Two SIP profiles with independent SIP registration per port

• Rich codec support: G.711, G.726, G.729, G.722, and iLBC for clear audio

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

• Core telephony features: call forwarding, call transfer, caller ID, and call waiting

• TLS/SRTP encryption ensures secure voice and fax communications

• Auto‑provisioning via HTTP/HTTPS, TR-069, and TFTP for easy deployment

• Compact desktop form factor with intuitive LED indicators for power, network, and line status