Grandstream 4-port FXO Gateway, GXW4104

hi everyone for today's video I will show you how you configure the scenario when you want to extend analog lines over IP network using the to Grand stream devices gxw 4100 and gxw 4000 this implementation is actually very popular in cases where you want to extend analog lines from let's say building building a to building B without the need to run a physical analog lines and without the need to have my PBX this implementation actually also allows you like to have a remote location to access the local ports lines in the headquarters for example you can also implement this scenario between the countries for example you can have the analog devices plugged into the FX s gateway in USA and the pots lines plugged into the FX or gateway let's say in friends so by just picking up the analog phone in USA you will be able to make calls from the pots lines in France this way you won't be charged