I would like to be able to connect a couple of analog handsets to to my freepbx. My understanding is a FXS card would do this. Just want to make sure this is correct. I am having trouble understanding the difference between fxo and fxs cards.
FXO= landline going in to the pbx
FXS= Voip service going out the pbx
I do not have a landline i wish to use and simply want my sip’s converted to an analog line for some extensions.
Is there a PCI-Express card you could maybe recommend? SOmething Basic?