A Volte GSM Gateway, also known as a Voice over LTE GSM Gateway, is a device that enables seamless verbal exchange between a mobile network and a VoIP (Voice over IP) network. It essentially bridges the distance between traditional GSM (international gadget for mobile Communications) era and the newer LTE (long time Evolution) network, taking into consideration first rate voice calls ... https://www.gsmgateway.in/volte-gsm-gateway.html