I have two residences with a POTS land line going to each one. I have a VPN setup between the locations using Netgear FVG318 VPN routers. I would like to deploy standard 2-line telephones at both locations so that the second line at each location is the phone line at the other location.
It seems like to do this I would need to deploy Asterisk at both locations and use the IAX trunking feature to tie them together. I would also need at least one ATA at both ends.
Is there another less complex, all hardware way that I could accomplish this?
Your advice is most appreciated!