Yeastar TG400L 4-Port LTE VoIP Gateway

Yeastar TG400L 4-Port Gateway

The Yeastar TG400L LTE Gateway bridges cellular 4G LTE networks with IP-based telephony systems to enable high-speed wireless trunking. This hardware facilitates cost-efficient mobile-to-mobile calls and provides essential connectivity for locations lacking traditional landline infrastructure. It supports four concurrent LTE channels, ensuring robust throughput for voice and data traffic. The system utilizes a web-based management interface for rapid deployment and configuration within existing SIP architectures. Network engineers frequently deploy this unit as a primary trunking solution or a failover mechanism for critical business communications.

Key Features

• Multi-Protocol Support
  This device operates seamlessly with SIP and IAX2 protocols to ensure compatibility with diverse IP-PBX platforms.

• Advanced SMS Capabilities

  • Bulk SMS sending and receiving via web interface
  • SMS to Email and Email to SMS conversion
  • USSD support for balance inquiries and top-ups

• Network Security
  Integrated firewall and IP blacklist features protect the internal voice network from unauthorized external access.

Specifications

What’s in the Box

• Yeastar TG400L Main Unit

• Power Adapter

• 4 x LTE Antennas

• Network Cable

• Warranty Card and Quick Installation Guide

Why Choose Yeastar TG400L

• The system provides a cost-effective alternative for businesses needing to terminate VoIP calls to mobile networks directly.

• However, it also serves as a critical backup link if primary fiber or copper connections experience downtime.

• Consequently, IT managers can maintain business continuity through cellular redundancy without complex hardware reconfigurations.

• Additionally, the Open API allows developers to integrate SMS functionality into custom enterprise applications and CRM systems.

• Therefore, this 4-port unit represents a scalable solution for expanding communication reach in remote or mobile environments.