Product Description
The Yeastar TG400 VoIP GSM Gateway is a professional 4-channel GSM-to-VoIP gateway that enables seamless communication between GSM mobile networks and IP-based telephony systems. Designed for small and medium-sized businesses, the TG400 allows organizations to connect up to four SIM cards to a VoIP network, providing a cost-effective solution for handling mobile calls, GSM trunking, and business continuity. It supports two-way communication—VoIP to GSM and GSM to VoIP—making it ideal for reducing call costs, increasing call capacity, and ensuring reliable connectivity when traditional landlines are unavailable.
The TG400 is fully compatible with SIP and IAX2 protocols, allowing easy integration with Yeastar IP PBXs, Asterisk, 3CX, FreePBX, and other SIP-based telephone systems. It supports advanced voice codecs including G.711, G.722, G.726, G.729A, GSM, ADPCM, and Speex, delivering high-quality voice communication with built-in echo cancellation. The gateway also offers bulk SMS, SMS API, USSD support, call routing, callback, caller ID, and Least Cost Routing (LCR), making it a versatile solution for businesses that rely heavily on mobile communications.
Designed for simple deployment and reliable operation, the TG400 features an intuitive web-based management interface, secure remote access, and comprehensive network security including TLS, SRTP, OpenVPN, VLAN, firewall, and QoS support. Its robust hardware, flexible routing capabilities, and broad interoperability make it an excellent choice for call centers, branch offices, enterprises, and service providers seeking to integrate GSM networks with their VoIP infrastructure while minimizing communication costs.
Key Features
- 4 GSM channels for simultaneous mobile calls
- Supports VoIP-to-GSM and GSM-to-VoIP communication
- Compatible with SIP and IAX2 protocols
- Supports G.711, G.722, G.726, G.729A, GSM, ADPCM, and Speex voice codecs
- Bulk SMS sending and receiving with API support
- USSD support for balance checks and mobile network services
- Least Cost Routing (LCR) to reduce telephony expenses
- Intelligent inbound and outbound call routing
- Built-in echo cancellation (ITU-T G.168)
- Web-based configuration and remote management
- Advanced security with TLS, SRTP, OpenVPN, firewall, VLAN, and QoS
- Compatible with Yeastar PBXs, Asterisk, FreePBX, 3CX, Elastix, and other SIP-based IP PBXs
- Ideal for SMEs, call centers, branch offices, and organizations requiring reliable GSM trunking and mobile backup connectivity.