The Grandstream GXW4501 is a professional E1/T1/J1 Digital VoIP Gateway designed to integrate traditional digital PSTN and ISDN trunks with modern VoIP networks and IP-PBX systems. It provides a reliable and flexible solution for businesses and enterprises looking to migrate to IP-based communications while maintaining their existing digital telephony infrastructure.
The GXW4501 features a software-configurable E1/T1/J1 port supporting multiple digital signaling standards, including PRI, SS7, and MFC R2. It also provides 2 Gigabit Ethernet ports with switched or routed operation and an integrated NAT router, offering flexible network connectivity for professional VoIP deployments.
With advanced voice processing, T.38 Fax over IP, carrier-grade echo cancellation, dynamic jitter buffering, and comprehensive security features, the GXW4501 delivers reliable voice communication and seamless digital-to-IP connectivity for demanding business environments.
Key Features:
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1 × Software-configurable E1/T1/J1 digital port.
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Supports PRI, SS7, and MFC R2 signaling.
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2 × 10/100/1000Mbps Gigabit Ethernet ports.
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Supports switched or routed network operation.
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Integrated NAT router.
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Supports multiple voice codecs including G.711, G.722, G.723.1, G.726, G.729, and iLBC.
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Supports T.38 Fax over IP.
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Carrier-grade Line Echo Cancellation.
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Dynamic jitter buffer for improved voice quality.
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Supports SIP over UDP, TCP, and TLS.
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Supports SRTP, TLS, HTTPS, SSH, and 802.1X security.
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Advanced security features including Fail2ban, whitelist, blacklist, and strong password-based access control.
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Supports Layer 2 and Layer 3 QoS for optimized voice traffic.
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Automated provisioning through TFTP, HTTP, and HTTPS.
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Supports failover SIP server functionality.
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Supports multi-language voice prompts.
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2 × USB 3.0 ports.
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1 × SD card interface.
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Supports call status, call history, device monitoring, and ISDN status monitoring.
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Supports rack-mount and desktop installation.
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Designed for interoperability with leading IP-PBX, softswitch, and SIP-based platforms.
Applications:
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Enterprise and corporate telephony.
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PSTN and ISDN trunk integration with IP-PBX systems.
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SIP trunk deployments.
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Call centers.
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Hotels and hospitality environments.
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Multi-branch business networks.
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Legacy digital telephony migration to VoIP.
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Fax-over-IP deployments.
The Grandstream GXW4501 provides a reliable bridge between traditional E1/T1/J1 digital telephony infrastructure and modern VoIP networks, enabling organizations to preserve existing digital trunks while benefiting from the flexibility, scalability, security, and advanced capabilities of IP-based communications.
