Yeastar TG400L LTE/4G Gateway 4-Channel VoIP Gateway

The Yeastar TG400L is a high-performance LTE/4G gateway designed to provide reliable voice-over-IP communication over cellular networks. With 4 independent LTE channels, it enables businesses to leverage 4G LTE connectivity for primary or backup telephony, ensuring uninterrupted communication. This gateway supports SIP trunking, SMS, and advanced VoIP features, making it an ideal solution for remote offices, temporary sites, or as a failover link.

Advantages

• Four LTE channels for load balancing and redundancy
• Easy integration with existing IP-PBX systems
• Web-based management for simple configuration
• Supports multiple voice codecs for high-quality audio
• Robust security features including firewall and DoS protection

Suitable for

• Businesses needing reliable voice communication over cellular networks
• Remote or temporary offices without fixed-line infrastructure
• Backup connectivity for critical telephony systems
• Deployments requiring multiple SIM cards for cost optimization

Key specifications

• LTE Channels: 4
• Network Type: 4G LTE (FDD-LTE B1/B3/B5/B7/B8/B20, TDD-LTE B38/B40/B41)
• VoIP Protocol: SIP (RFC3261)
• Ethernet Ports: 1 x 10/100 Mbps (RJ45)
• Antenna Connectors: 4 x SMA Female
• SIM Card Slots: 4 (Mini SIM)
• Voice Codecs: G.711, G.722, G.726, G.729A, GSM, ADPCM, Speex
• Echo Cancellation: ITU-T G.168, up to 128ms
• Power Supply: DC 12V, 1A
• Management: Web-based GUI

Recommendations

For optimal performance, use high-gain external antennas and ensure adequate LTE signal strength. The TG400L is compatible with most SIP-based PBX systems and softswitches.