Quote from: pc44 on July 06, 2011, 05:08:10 AMWhat do you do when you have 2 (two) Obi's behind 1 (one) router? 
Test to see that it is, in fact, the router by forwarding the ports to one of the devices. If the audio problems magically go away for that device only, then sorry to say but you probably will need a new router. When you buy it, make sure you can return it if it doesn't solve the problem, just in case you get another one that doesn't handle NAT properly (most new routers do, but there may still be a few lemons on the shelves).
Don't forward any ports on the new router - both OBi devices should work fine. If by chance they don't, return that router and try a different model or brand.
On the plus side, if it's an older router, you'll probably get faster speeds on your local network after you replace it.
On our system we have a two OBi devices, a few older Linksys/Sipura devices, and an Asterisk server. The ports mentioned in RonR's post above are within the range that we forward to the Asterisk server. Yet all of the devices coexist happily behind one router (and some of them do connect to providers other than our Asterisk server that are not on our local network). I mention this only to say that if forwarding the ports to the OBi actually makes a difference, it's really time to start thinking about splurging for a new router, because a good router will keep the packets flowing smoothly even if you have to forward those ports to a different device or server.
