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 routingWorks with any standard SIP server, softswitch, or IP-PBXSimple web-based configurationCall routing rules, blacklisting, and call detail recordsBuilt-in security: IP blacklist, network attack alerts, packet captureLower-cost option for moderate mobile call volumes