Yeastar TG400L 4-Port LTE VoIP Gateway
The Yeastar TG400L 4-Port LTE VoIP Gateway is a powerful multi-channel LTE gateway designed to connect VoIP systems with 4G mobile networks. Featuring four LTE ports, it enables seamless two-way communication between SIP-based IP PBX systems and mobile networks for voice calls and SMS services.
Ideal for businesses seeking cost-effective mobile trunking or a reliable backup solution during fixed-line outages, the TG400L supports VoLTE for high-definition voice quality and offers secure, web-based management. It integrates easily with most SIP-compatible PBX systems, making it perfect for SMBs, branch offices, and enterprise deployments.
Key Features
4 LTE mobile ports for simultaneous calls
VoIP to LTE and LTE to VoIP call routing
VoLTE HD voice support
SIP v2.0 and IAX2 protocol compatibility
SMS and USSD support
Web-based configuration and management
Cost-effective mobile trunking solution
Ideal failover backup for landline outages
Compatible with most SIP-based IP PBX systems
Secure voice with TLS and SRTP support
Technical Specifications
| Specification | Details |
|---|---|
| Model | TG400L |
| Mobile Ports | 4 LTE channels |
| Network Support | 4G LTE, 3G UMTS/HSPA+, 2G GSM fallback |
| VoIP Protocols | SIP v2.0, IAX2 |
| Transport & Security | UDP, TCP, TLS, SRTP |
| Voice Codecs | G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex |
| Echo Cancellation | ITU-T G.168 LEC |
| DTMF Modes | RFC2833, SIP INFO, In-band |
| SMS/USSD Support | Yes |
| Network Features | DHCP, DDNS, Firewall, OpenVPN, VLAN, QoS, NAT, STUN |
| Management Interface | Web-based GUI |
| Power Supply | AC 100–240V / DC 12V |
| Operating Temperature | 0°C to 40°C |
| Form Factor | Desktop device |
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