Yeastar TG400 4 Ports GSM VoIP Gateway

The Yeastar TG400 is a high-performance 4-port VoIP GSM gateway designed to connect cellular networks, including GSM, 3G, and 4G LTE, to VoIP-based telephone systems. Ideal for small to medium-sized businesses (SMBs) and remote offices, it reduces call costs by routing calls through mobile networks and provides a reliable failover solution for landlines or primary internet connections. With hot-swappable SIM cards, advanced routing features, and secure management tools, the TG400 ensures uninterrupted and cost-efficient communication.

Product Features

Four GSM/3G/4G Channels

Supports four independent SIM cards for simultaneous calls, enabling high-volume connectivity and redundancy.

Cost Reduction

Converts fixed-to-mobile calls into cheaper mobile-to-mobile calls, optimizing telecommunication expenses for businesses.

System Backup

Acts as a reliable fallback solution, ensuring business continuity during landline or internet outages.

SMS Capabilities

Supports sending and receiving SMS and bulk SMS via a web interface or API, allowing for marketing campaigns and customer notifications.

High Compatibility

Fully interoperable with popular IP-PBX systems, softswitches, and SIP servers, including Asterisk and Elastix.

Easy Management

Features an intuitive web-based GUI for remote configuration, monitoring, and system maintenance without specialized IT knowledge.

Advanced Routing

Includes Least Cost Routing (LCR), AutoCLIP, call forwarding, call back, and blacklisting for intelligent and automated call management.

Advanced Hardware

Supports hot-swappable SIM cards, includes four SMA antennas (with optional Four-in-One antenna), and provides flexible desktop or rack-mounted installation options.

Security & Software

Built-in firewall, IP blacklisting, VPN support (OpenVPN), TLS/SRTP encryption, routing logic, web GUI, system logs, and packet capture for troubleshooting and secure management.

Product Specifications

• Channels: 4 GSM/3G/4G channels with 4 SIM cards for simultaneous operation.
• Frequency Bands:
  • GSM: Quad-band 850/900/1800/1900 MHz
  • UMTS (3G): 850/1900, 850/2100, 900/2100 MHz
  • CDMA: 800 MHz
• Protocols: SIP (RFC3261), IAX2.
• Network Interface: 1 x 10/100 Mbps Ethernet port.
• Voice Codecs: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex.
• Audio Processing: Echo cancellation (ITU-T G.168 LEC), adaptive jitter buffer, packet loss concealment.
• DTMF Modes: RFC2833, SIP INFO, In-band.
• Power Supply: AC 100-240V, 50/60Hz, max 0.5A; typical consumption 8W–15W.
• Dimensions: 213 × 160 × 44 mm; Weight: ~0.5 kg.
• Environmental: Operating 0°C–45°C; Humidity 10%–90% non-condensing.
• Hardware Features: Hot-swappable SIM cards, SMA antennas (4), optional Four-in-One antenna for simplified cabling, desktop or rack-mounted.
• Advanced Software Features: Least Cost Routing (LCR), AutoCLIP, time-based routing, SMS via web interface/API, Open API for SMS/USSD integration.
• Security Features: Built-in firewall, IP blacklisting, VPN support, TLS/SRTP encryption, network monitoring, logging, and packet capture.
• Deployment Modes: SIP Peer Mode or SIP Proxy Registrar, allowing flexible integration with IP PBX systems or direct IP phone registration.