No voice on other end of call

[Russell]

The basics.....

1) assign a static IP to the ATA in the router
2) verify UDP ports 5004-65000 are forwarded to the ATA's static IP
3) verify SIP ALG is turned off in the router (if applicable)

If these are correctly set and you are still having one-way audio, can you try putting the ATA ahead of the router just as temporary measure for testing? If the problem still persists in this scenario, contact Support. If the problem goes away, you likely have port blocking or NAT issue still going on in your router.

Nicely summarized.

[stevech]

why is it that I've not had to do port forward/triggering on any of the routers I've owned, for Linksys and GS ATAs, but doing so is the standard guess as to problem correction?

(ATA on LAN side of router)