Yeastar TG400 LTE

Yeastar TG400 LTE VoIP Gateway

Overview

Looking for a Yeastar TG400 LTE gateway Kenya solution? The TG400 connects mobile GSM and 4G LTE networks directly to your VoIP system, so calls can flow both ways between your PBX and the mobile network. It supports 4 SIM channels, making it a strong fit for businesses with higher call volumes to mobile numbers than a 2-channel gateway can comfortably handle. Net-Top supplies and configures genuine Yeastar TG400 LTE gateways in Nairobi, and we include local technical support with every installation.

Connectivity & Compatibility

The TG400 integrates smoothly with most existing phone systems, so you don’t need to replace anything to add mobile connectivity. It works natively with Yeastar S-Series and P-Series PBX systems, plus Asterisk, FreePBX, 3CX, and Issabel. It also includes 1x 10/100 Ethernet port and supports SIP and IAX2 protocols, along with DHCP, static IP, VLAN, and OpenVPN for flexible network setups.

Cost Savings & Use Cases

Businesses use the TG400 to cut down on mobile call costs, since routing calls through SIM cards avoids expensive mobile-to-mobile surcharges from landline providers. With 4 channels running simultaneously, it handles higher call traffic than the TG200, making it suited to call centers or busier sales teams. It also sends and receives SMS through a web interface, including bulk SMS for customer notifications or promotions, and many businesses deploy it as a failover solution when the main landline connection goes down.

Security & Management

Yeastar built the TG400 with TLS and SRTP encryption, plus a built-in firewall and static NAT support, so mobile-to-VoIP traffic stays protected. The web-based management interface makes setup straightforward, even for teams without deep telecom expertise. Between its compact size and simple configuration, the TG400 is easy to deploy alongside almost any existing office phone system.