Yeastar TG400L 4-Channel LTE VoIP Gateway

The TG400L gives businesses 4 independent 4G LTE channels for routing calls between an IP-PBX and mobile networks, avoiding standard mobile termination rates on outbound and inbound calls. It works with Yeastar phone systems as well as any SIP server, softswitch, or IP-PBX, including Grandstream and Elastix.

It's a good fit for smaller teams or departments that need reliable mobile connectivity without the channel count of the 8-port model, still supported by the same web-based configuration, routing rules, blacklisting, and call detail reporting.

Standard VoIP codecs, transport security (TLS/SRTP), and network protections like IP blacklisting and attack alerts are all included, so it integrates into an existing network without extra hardening steps.

Key features:

• 4 independent 4G LTE/GSM channels for mobile call routing
• Works with any standard SIP server, softswitch, or IP-PBX
• Simple web-based configuration
• Call routing rules, blacklisting, and call detail records
• Built-in security: IP blacklist, network attack alerts, packet capture
• Lower-cost option for moderate mobile call volumes