Grandstream GXW4504 Digital E1/T1/J1 VoIP Gateway

The Grandstream GXW4504 is a high-performance digital E1/T1/J1 VoIP gateway designed for the seamless integration of traditional telephony systems with IP-based networks. This device supports up to 4 E1/T1/J1 spans, facilitating the connection of up to 120 concurrent calls between PSTN and IP networks.

 Grandstream GXW4504 Key Features

1. Multiple Voice Channels: The GXW4504 supports up to 120 concurrent voice calls, providing ample capacity for medium to large-sized businesses.
2. E1/T1/J1 Interfaces: With these interfaces, the GXW4504 offers compatibility with a wide range of digital telecommunication standards.
3. Advanced Security: Equipped with top-notch security features such as SRTP, TLS, and HTTPS, the GXW4504 ensures that your communications are secure and protected from eavesdropping or data breaches.
4. Easy Configuration and Management: The device boasts a user-friendly interface that simplifies setup and management.
5. Excellent Voice Quality: The GXW4504 delivers superior voice quality thanks to its advanced echo cancellation and jitter buffer technologies.

Engineered for reliability and scalability, the GXW4504 is an ideal solution for enterprises, call centers, and service providers seeking to modernize their communications infrastructure.

Telephone Interfaces

• T1/E1/J1 Interface: 4 RJ45 ports, supporting up to 120 simultaneous VoIP calls, providing scalable solutions for various organizational sizes.
• Network Interfaces: Dual self-adaptive Gigabit ports (switched or routed) for high-speed and reliable network connectivity.
• Peripheral Connectivity: Equipped with 2 USB 3.0 ports and an SD card interface for expanded peripheral device support.

Intuitive User Interface

• LED Indicators: Indicators for LAN, WAN, and T1/E1/J1 provide quick visual status checks.
• LCD Display: A 128×32 dot matrix graphic LCD with DOWN and OK buttons offers easy navigation and setup.

Advanced Voice and Video Capabilities

• Voice-over-Packet Excellence: Includes an LEC with NLP Packetized Voice Protocol Unit, carrier-grade Line Echo Cancellation, and a Dynamic Jitter Buffer for crystal-clear voice communications.
• Comprehensive Codec Support: A wide range of voice and fax codecs, including G.711, G.722, G.726, G.729A/B, and Opus, ensuring compatibility and flexibility in communications.

Effective Fax over IP Solutions

• T.38 Compliance: Facilitates reliable Group 3 Fax Relay with an auto-switch to G.711 for Fax Passthrough, supporting various fax data pump standards.

Enhanced Voice-Quality Features

• Voice-Quality Enhancement: Incorporates Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), and PLC for superior call quality.
• Optimized QoS: Layer 2 and Layer 3 QoS (ToS, DiffServ, MPLS) for prioritized and efficient network traffic management.

Signalling and Control for Advanced Networking

• DTMF and Digital Signaling: Supports a variety of DTMF methods and digital signalling protocols, including SIP over UDP/TCP/TLS, PRI, SS7, and more, for versatile connection options.
• Easy Firmware Upgrades: Offers firmware upgrades via TFTP/HTTP/HTTPS and local HTTP upload.

Secure and Efficient Device Management

• Device Management: Features include Syslog, HTTPS, Web browser, voice prompts, TR-069 management, and advanced network protocol support.
• Status and Statistics Monitoring: Provides detailed call status, device monitoring, and ISDN status monitoring.

Security Protocols

• Comprehensive Media Encryption: Employs SRTP, TLS, HTTPS, SSH, and 802.1X for secure communications.
• Advanced Defense: Features include Fail2ban, alert events, and customizable Whitelist/Blacklist options.

Physical Specifications and Environmental Tolerance

• Universal Power Supply: Tailored power supply options for different models, suitable for a range of power inputs.
• Optimal Operating Conditions: Designed to function in diverse environmental conditions with robust electrical protection as per ITU-T Recommendation K.21.
• Physical & Dimensions: Detailed unit dimensions and weight provided, ensuring compatibility with various space requirements.

Mounting and Compliance

• Flexible Mounting Options: Designed for both rack mount and desktop placement, providing installation versatility.
• Global Compliance Standards: Meets various international standards including FCC, CE, C-TICK, ITU-T, and UL, ensuring global compatibility and safety.