Grandstream GXW4501 1-Port FXS VoIP Gateway

The Grandstream GXW4501 is a compact and reliable single-port analog-to-VoIP gateway designed for users needing to connect an individual analog phone or fax machine to a SIP-based VoIP system. With essential telephony features built into a space-saving design, it’s perfect for home offices, small businesses, or remote deployments looking to preserve legacy devices.

Key Features:

• 1 FXS port for a single analog phone or fax

• Gigabit Ethernet port for fast, stable network connectivity

• Supports one SIP profile with full SIP registration and functionality

• Audio codec support: G.711, G.726, G.729, G.722, and iLBC for clear voice quality

• T.38 Fax-over-IP with fallback to G.711 to ensure fax compatibility

• Basic telephony features: call waiting, caller ID, call transfer

• TLS/SRTP encryption for secure, private voice communications

• Auto-provisioning support via HTTP/HTTPS, TR-069, and TFTP

• Compact desktop design with LED indicators for power, network, and phone status