Product description

Yeastar TG400 VoIP GSM Gateway is a 4-port GSM to VoIP gateway designed to integrate cellular (GSM) networks with VoIP telephone systems and IP PBX platforms. It enables two-way calling between GSM mobile networks and VoIP infrastructure, helping businesses reduce call costs, improve connectivity flexibility, and provide mobile network backup when traditional SIP trunks or landlines are unavailable.

Key features and capabilities:

• Four independent GSM channels with four SIM slots, allowing multiple simultaneous GSM calls and increased call capacity.

• Supports standard VoIP signaling protocols such as SIP, ensuring broad compatibility with IP PBX systems and softswitches.

• Voice codec support (e.g., G.711, G.729) to deliver good audio quality across different networks.

• Web-based management interface for easy configuration of dial plans, routing rules, and system settings.

• Intelligent call routing including least-cost routing (LCR) to optimize call expenses.

• SMS send/receive functionality using connected GSM networks.

• Failover capability, providing a fallback communication path through GSM if primary VoIP connectivity is lost.

• Built-in network features like NAT traversal, firewall, and Quality of Service (QoS) support for reliable performance.

In summary, the TG400 is a versatile and scalable GSM-to-VoIP gateway suited for businesses that need reliable hybrid voice connectivity, cost-effective mobile calling options, and greater redundancy in their telephony systems.