Yeastar Tg400l 4 Ports 4g Lte Voip GSM Gateway

The Yeastar TG400L 4G LTE VoIP GSM Gateway is a reliable 4-port gateway designed to connect GSM/4G LTE networks with VoIP systems. It enables seamless call routing between mobile networks and IP-based telephony, helping businesses reduce communication costs and improve flexibility. Supporting SIP protocol, it integrates easily with IP PBX systems like Yeastar, Asterisk, and others. The TG400L features hot-swappable SIM cards, strong signal stability, and advanced security with firewall and encryption. Ideal for SMEs, call centers, and remote offices, it ensures clear voice quality, efficient traffic management, and uninterrupted communication.