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Grandstream GXW4502 E1/T1/J1 Digital VoIP Gateway

Grandstream GXW4502 E1/T1/J1 Digital VoIP Gateway

The Grandstream GXW4502 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to connect traditional PSTN, ISDN, and legacy PBX systems with SIP-based VoIP networks. Featuring two software-configurable E1/T1/J1 spans, the GXW4502 enables organisations to integrate…

£1,200.00

Out of stock

The Grandstream GXW4502 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to connect traditional PSTN, ISDN, and legacy PBX systems with SIP-based VoIP networks. Featuring two software-configurable E1/T1/J1 spans, the GXW4502 enables organisations to integrate existing digital telephony infrastructure with modern IP communications while reducing migration costs and protecting previous investments. It is ideal for medium and large businesses, service providers, call centres, and multi-site deployments.

The GXW4502 supports up to 60 concurrent calls and provides broad compatibility with SIP platforms and digital signalling protocols including PRI, SS7 and MFC R2. The gateway includes dual Gigabit network interfaces, advanced voice processing technologies, enhanced security features, and flexible provisioning options for reliable large-scale deployments.

Ideal For

  • Medium and large business environments
  • Service providers
  • Enterprise telephony systems
  • Call centres
  • Branch office deployments
  • Existing PBX integrations
  • PSTN and ISDN migration projects
  • Multi-site communications environments

Benefits

The GXW4502 allows organisations to maintain existing digital telephony infrastructure while transitioning to IP-based communications. This reduces infrastructure replacement costs and simplifies migration to modern SIP systems.

Its dual-span design supports increased call capacity and provides greater flexibility for organisations handling higher communication volumes.

  • Two software-configurable E1/T1/J1 spans
  • Supports up to 60 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

Telephony Features

  • 2 × software-configurable E1/T1/J1 spans
  • Supports PRI, SS7 and MFC R2 signalling
  • Supports up to 60 simultaneous calls
  • T.38 Fax-over-IP support
  • Multiple SIP profile support
  • Flexible call routing support

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.729, G.723, iLBC, G.726 and GSM-FR 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 via HTTP, HTTPS and TFTP
  • XML configuration file 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 GXW4502 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 GXW4502 E1/T1/J1 Digital VoIP Gateway is an enterprise-grade digital gateway designed to connect traditional PSTN, ISDN, and legacy PBX systems with SIP-based VoIP networks. Featuring two software-configurable E1/T1/J1 spans, the GXW4502 enables organisations to integrate existing digital telephony infrastructure with modern IP communications while reducing migration costs and protecting previous investments. It is ideal for medium and large businesses, service providers, call centres, and multi-site deployments.

The GXW4502 supports up to 60 concurrent calls and provides broad compatibility with SIP platforms and digital signalling protocols including PRI, SS7 and MFC R2. The gateway includes dual Gigabit network interfaces, advanced voice processing technologies, enhanced security features, and flexible provisioning options for reliable large-scale deployments.

Ideal For

  • Medium and large business environments
  • Service providers
  • Enterprise telephony systems
  • Call centres
  • Branch office deployments
  • Existing PBX integrations
  • PSTN and ISDN migration projects
  • Multi-site communications environments

Benefits

The GXW4502 allows organisations to maintain existing digital telephony infrastructure while transitioning to IP-based communications. This reduces infrastructure replacement costs and simplifies migration to modern SIP systems.

Its dual-span design supports increased call capacity and provides greater flexibility for organisations handling higher communication volumes.

  • Two software-configurable E1/T1/J1 spans
  • Supports up to 60 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

Telephony Features

  • 2 × software-configurable E1/T1/J1 spans
  • Supports PRI, SS7 and MFC R2 signalling
  • Supports up to 60 simultaneous calls
  • T.38 Fax-over-IP support
  • Multiple SIP profile support
  • Flexible call routing support

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.729, G.723, iLBC, G.726 and GSM-FR 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 via HTTP, HTTPS and TFTP
  • XML configuration file 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