GSM GATEWAY
4G LTE enabled flexible GSM solution for the Open Source IP PBX & Call Center Dialers
*astTECS 4 Port GSM Gateway is an ideal 4G LTE solution for small businesses or for new Call Centers with small number of agents. This can be connected to one or more lines of IP PBX to a VOIP phone system or provider. This 4 Port GSM VOIP Gateway has 4 channels SIM Card Slots that can handle upto 4 concurrent calls and has ability of implementing calls between 4G/3G/2G network.