Yeastar TG400 4-Channel VoIP GSM/4G Gateway
Yeastar TG400 4-channel VoIP GSM/4G gateway for connecting GSM/3G/4G cellular networks with IP-PBX and VoIP systems through SIP, supporting two-way cellular-to-IP communication.
The Yeastar TG400 is a cellular VoIP gateway designed to connect GSM/3G/4G mobile networks with IP-based communication systems. It converts voice traffic between cellular networks and VoIP and can be integrated with IP-PBX systems such as Yeastar and other SIP-compatible platforms. The TG400 provides 4 cellular channels, allowing SIM cards to be used as mobile trunks within a business telephone system. It supports two-way communication, including VoIP-to-mobile and mobile-to-VoIP calls. The gateway supports SIP and IAX2, along with UDP, TCP, TLS and SRTP transport protocols. Supported voice codecs include G.711, G.726, G.729A, GSM, ADPCM and Speex. Network features include DHCP, DDNS, Firewall, OpenVPN, VLAN, QoS and Static Route. The TG400 can be used to connect IP-PBX systems to cellular trunks, provide backup connectivity for voice services, and route calls between VoIP and mobile networks. Yeastar provides official integration guides for the TG400 with P-Series and other VoIP platforms.
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