The Dinstar UC2000 series VoIP GSM/3G/4G Gateways offer complete choices scalable from 1 to 128 channels, implement the state-of-the-art functionality in market as always, and enable the smooth transit between mobile and VoIP networks. Integrated GSM/WCDMA/LTE connectivity and SIP protocol compatible with mainstream VoIP platforms, it is suitable for enterprises, multi-site organizations, call terminators and areas with limited landline like rural area to cut down telephony costs and enable easy & efficient communications.