Hello Dear, Are you considering connecting the analog PSTN telephone line in your IP PBX and making incoming and outgoing using IP PBX? Grandstream FXO Gateway is a great choice. Grandstram has GXW410X FXO Gateway series device. GXW4104 has 4 ports and GXW4108 has 8 ports connecting the analog PSTN telephone line. I will show you the Grandstream FXO Gateway Configuration with the Grandstem UCM IP-PBX server in this post. However, I have divided this post into two segments, one…
