Yeastar TG400L (LTE/4G) VoIP Gateway

The Yeastar TG400L is a 4-port 4G LTE VoIP gateway designed to bridge IP-based phone systems, including PBXs and softswitches, with cellular networks. Ideal for businesses seeking cost-effective call routing and reliable failover during landline or internet outages, the TG400L enables seamless communication between VoIP and 4G LTE networks. With support for VoLTE, bulk SMS, USSD, and advanced routing features, this gateway ensures high-quality voice, efficient cost management, and broad compatibility with major SIP-based systems.

Product Features

Four LTE Channels

Supports four independent SIM cards for simultaneous 4G LTE connections, providing redundancy and high call volume capacity.

VoLTE Support

Delivers high-definition voice quality for crystal-clear communication over LTE networks.

SMS & USSD Functionality

Enables sending and receiving individual or bulk SMS and managing network services through USSD via a web interface or API.

Cost Management

Features Least Cost Routing (LCR) to automatically select the most economical network or SIM for outgoing calls.

Universal Compatibility

Fully interoperable with major SIP-based platforms, including Yeastar systems, 3CX, Asterisk, FreePBX, and Microsoft Lync.

Security & Network Protection

Includes built-in firewall, IP/MAC filtering, DoS attack prevention, and TLS/SRTP encryption to ensure secure communications.

Easy Management

Offers an intuitive web-based graphical user interface (GUI) for quick configuration, monitoring, and maintenance without specialized IT knowledge.

Flexible Deployment

Supports both desktop and rack-mounted installation, with compact design and multiple SIM slot management for versatile deployment in SMBs and remote offices.

Product Specifications

• Ports: 4 LTE Ports (4 SIM card slots).
• Network Support: 4G LTE with fallback to 3G UMTS/HSPA+ and 2G GSM/GPRS.
• Protocols: SIP v2.0 (RFC3261), IAX2.
• Voice Codecs: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex.
• Network Interface: 1 x 10/100 Mbps Ethernet port.
• Security: Built-in firewall, IP/MAC filtering, DoS attack prevention, TLS/SRTP encryption.
• Management: Web-based graphical user interface (GUI) for configuration, monitoring, and maintenance.
• Audio Processing: Echo cancellation (ITU-T G.168), dynamic jitter buffer, and voice activity detection (VAD).
• Physical Dimensions: Approx. 213 × 160 × 44 mm; compact and lightweight.
• Power Supply: AC 100-240V or DC 12V, 1A, typical consumption 5–15W.
• Deployment Options: Desktop or rack-mounted; SIM cards are hot-swappable for continuous operation.