Setup: Our main office will have 16 or so POTS lines coming into it. Our BRANCH office has four POTS lines coming into it. The main office has a bunch of VoIP phones and the VoIP server. The Branch office has two VoIP phones. The offices are connected via a VPN over the internet, but the latency and jitter when using VoIP over the VPN makes our clients cringe. So my question is, is there some simple device that: --Has two POTS line connectors (FXO ports) --Has one Ethernet connector (to talk with the VoIP phones at the branch office) --Will accept VoIP(ish) calls from our main office PBX system and forward them to the VoIP phones at the branch office? If so, would Asterisk see the branch office VoIP phones as regular extensions? I'm trying to avoid having to upgrade our internet connection to a low-latency connection, as the costs are prohibitive. Has anyone else experiance in this type of setup? It looks kinda like I"m trying to do ISDN/BRI between the PBX and the remote office, using the POTS line as the carrier. Would you suggest anything?