Grandstream and a Westell DSL modem

[abward]

Well, this did not work. I tried putting it behind the router, and opening up the ports, and it will not register.

And, no one is home at the online support.

I currently have it like this:

Westell (Bridged mode, so it acts like a modem only) --> USR5461 router (DHCP on, PPPoE, firewall on, ports forwarded) --> GS (static ip, DHCP off)

Edit: Also just tried:

Westell (Bridged mode, so it acts like a modem only) --> GS (DHCP on, PPPoE) --> USR5461 router (DHCP off, firewall on)

This seems like this would be an ideal config, since I should not have to worry about port forwarding or QOS, but the GS is still not registering.

Edit 2: I opened a ticket and Cody got me going. He found that the adapter had lost its provisioning, so it did not know to connect to the VOIPo servers. He went into admin mode and entered the IP for the VOIPo servers and off it went. Thanks Cody! So, I left the adapter between the Westell and the router.