The Yeastar Neogate TE100 (NG1GSM) 1 SIM Gateway is a basic, single port E1/T1/J1 VoIP Gateway that supports up to 30 concurrent calls. Designed to bridge existing E1/T1/J1 ports and VoIP networks, the Neogate TE100 offers a cost-effective and green solution to established legacy telephone systems.