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Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway

Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway

The Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to bridge traditional PSTN, ISDN, and legacy PBX systems with modern SIP-based IP communication networks. Featuring four software-configurable E1/T1/J1 spans, the GXW4504 is built for…

£1,800.00

Out of stock

The Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to bridge traditional PSTN, ISDN, and legacy PBX systems with modern SIP-based IP communication networks. Featuring four software-configurable E1/T1/J1 spans, the GXW4504 is built for high-capacity deployments and allows organisations to integrate existing telephony infrastructure while transitioning to IP communications. It is ideal for enterprises, service providers, call centres, hospitality environments, and large multi-site organisations.

The GXW4504 supports up to 120 concurrent calls and offers compatibility with major SIP platforms and digital signalling standards including PRI, SS7 and MFC R2. With dual Gigabit Ethernet interfaces, advanced voice processing technologies, strong security features, and centralised management support, the GXW4504 provides a scalable solution for large communication environments.

Ideal For

  • Enterprise environments
  • Service providers
  • Call centres
  • Hospitality deployments
  • Multi-site organisations
  • Existing PBX integrations
  • PSTN and ISDN migration projects
  • High-volume communications environments

Benefits

The GXW4504 enables organisations to retain existing digital telephony investments while migrating to SIP-based communications, reducing infrastructure replacement costs and simplifying deployment.

Its four-span architecture supports larger communication volumes and provides scalability for organisations requiring high-density digital voice connectivity.

  • Four software-configurable E1/T1/J1 spans
  • Supports up to 120 concurrent calls
  • PRI, SS7 and MFC R2 signalling support
  • Dual Gigabit Ethernet ports
  • Integrated configurable NAT router
  • T.38 Fax-over-IP support
  • Two USB 3.0 ports
  • SD card slot for expandable storage
  • Wide voice codec support including Opus and G.722
  • Carrier-grade echo cancellation
  • TLS and SRTP security encryption
  • Automated provisioning via HTTP, HTTPS and TFTP
  • Multi-language voice prompts
  • Centralised device management support

Telephony Features

  • 4 × software-configurable E1/T1/J1 spans
  • Supports PRI, SS7 and MFC R2 signalling
  • Supports up to 120 simultaneous calls
  • T.38 Fax-over-IP support
  • Multiple SIP profile support
  • Flexible call routing functionality

Network Interfaces

  • Dual 10/100/1000Mbps Gigabit Ethernet ports
  • Switched or routed operation modes
  • Integrated NAT router functionality

Audio Features

  • Supports Opus, G.722, G.711, G.723.1, G.726, G.729A/B, iLBC and GSM codecs
  • Carrier-grade 128ms line echo cancellation
  • Dynamic jitter buffer
  • Modem detection with automatic switching

Security

  • TLS and SRTP encryption
  • HTTPS secure management
  • Secure provisioning support
  • User authentication and access controls

Management

  • Automated provisioning through HTTP, HTTPS and TFTP
  • XML configuration support
  • Web-based management interface
  • Multi-language voice prompts
  • Centralised management support

Physical

  • 128 × 32 graphical LCD display
  • LED indicators for LAN, WAN and E1/T1/J1 status
  • Reset button for reboot and factory reset
  • Two USB 3.0 ports
  • One SD card slot
  • Rack-mount installation support
  • Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway
  • Power Supply Unit (PSU)
  • Ethernet cable
  • Rack-mount brackets and mounting accessories
  • Quick installation guide
  • Warranty documentation

Next Day Delivery
For UK orders received before 1pm Monday to Friday, we operate a next business day delivery service, subject to availability. We use next day services from the leading delivery companies.

Specific Time Delivery
If you need an item urgently, or delivered at a specific time, please contact us.

Delivery Methods
We use several leading delivery companies. The majority of our deliveries are made by DPD, including most international orders.

Shipping prices are calculated during the checkout process. We deliver to almost every country. For international delivery services, we use DHL, a high quality, fast delivery service. Prices are provided based on the weight of the order; this is calculated when you reach the checkout.

For full shipping information please visit our shipping page.

Overview

The Grandstream GXW4504 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to bridge traditional PSTN, ISDN, and legacy PBX systems with modern SIP-based IP communication networks. Featuring four software-configurable E1/T1/J1 spans, the GXW4504 is built for high-capacity deployments and allows organisations to integrate existing telephony infrastructure while transitioning to IP communications. It is ideal for enterprises, service providers, call centres, hospitality environments, and large multi-site organisations.

The GXW4504 supports up to 120 concurrent calls and offers compatibility with major SIP platforms and digital signalling standards including PRI, SS7 and MFC R2. With dual Gigabit Ethernet interfaces, advanced voice processing technologies, strong security features, and centralised management support, the GXW4504 provides a scalable solution for large communication environments.

Ideal For

  • Enterprise environments
  • Service providers
  • Call centres
  • Hospitality deployments
  • Multi-site organisations
  • Existing PBX integrations
  • PSTN and ISDN migration projects
  • High-volume communications environments

Benefits

The GXW4504 enables organisations to retain existing digital telephony investments while migrating to SIP-based communications, reducing infrastructure replacement costs and simplifying deployment.

Its four-span architecture supports larger communication volumes and provides scalability for organisations requiring high-density digital voice connectivity.

  • Four software-configurable E1/T1/J1 spans
  • Supports up to 120 concurrent calls
  • PRI, SS7 and MFC R2 signalling support
  • Dual Gigabit Ethernet ports
  • Integrated configurable NAT router
  • T.38 Fax-over-IP support
  • Two USB 3.0 ports
  • SD card slot for expandable storage
  • Wide voice codec support including Opus and G.722
  • Carrier-grade echo cancellation
  • TLS and SRTP security encryption
  • Automated provisioning via HTTP, HTTPS and TFTP
  • Multi-language voice prompts
  • Centralised device management support

Telephony Features

  • 4 × software-configurable E1/T1/J1 spans
  • Supports PRI, SS7 and MFC R2 signalling
  • Supports up to 120 simultaneous calls
  • T.38 Fax-over-IP support
  • Multiple SIP profile support
  • Flexible call routing functionality

Network Interfaces

  • Dual 10/100/1000Mbps Gigabit Ethernet ports
  • Switched or routed operation modes
  • Integrated NAT router functionality

Audio Features

  • Supports Opus, G.722, G.711, G.723.1, G.726, G.729A/B, iLBC and GSM codecs
  • Carrier-grade 128ms line echo cancellation
  • Dynamic jitter buffer
  • Modem detection with automatic switching

Security

  • TLS and SRTP encryption
  • HTTPS secure management
  • Secure provisioning support
  • User authentication and access controls

Management

  • Automated provisioning through HTTP, HTTPS and TFTP
  • XML configuration support
  • Web-based management interface
  • Multi-language voice prompts
  • Centralised management support

Physical

  • 128 × 32 graphical LCD display
  • LED indicators for LAN, WAN and E1/T1/J1 status
  • Reset button for reboot and factory reset
  • Two USB 3.0 ports
  • One SD card slot
  • Rack-mount installation support