The Grandstream GXW4501 is a high-performance Digital VoIP Gateway designed to seamlessly integrate traditional PBX systems or E1/T1/J1 providers with VoIP networks. Supporting 30 concurrent calls significantly expands the number of PSTN/ISDN trunks available within a VoIP infrastructure. This makes it ideal for businesses looking to modernize their communication systems.

The GXW4501 is built for seamless interoperability, supporting major digital signaling protocols (PRI, SS7, MFC R2) and an extensive range of voice codecs (Opus, G.722, G.711, G.729, G.723, iLBC, G.726, GSM-FR, etc.). It features dual Gigabit ports, an integrated NAT router, two USB 3.0 ports, and an SD card interface for added flexibility.

With advanced capabilities such as echo cancellation, jitter buffer, T.38 fax support, and robust security encryption. The GXW4501 is an ideal solution for large and medium enterprises seeking a scalable and secure VoIP gateway.

Features

• Dual Gigabit auto-sensing RJ45 network ports with an integrated NAT router
• TLS and SRTP security encryption for secure call and account protection
• Automated provisioning via HTTP/TFTP with XML configuration files
• Software-configurable E1/T1/J1 ports, supporting PRI, SS7, and MFC R2 protocols
• Wide codec support, including G.722, G.729, iLBC, Opus, and more
• T.38 Fax support for reliable Fax-over-IP transmission
• Multilingual voice prompts for flexible user interaction
• Handles up to 30 concurrent calls efficiently

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