A user is having a problem with his IP communicator. He is able to talk and the person he calls is able to hear him, but he is not able to hear what the other person is saying. We are using a outside IP address and he is able to make calls. We tested the IP communicator inside the office and everything worked fine. I found on cisco's site that there were two port forwarding entries that needed to be added in the the wireless router for allowing IDP traffic incoming sound. We did that and still did not work. The user's home network consist of a cable modem router (provided by his ISP), a gateway and then a DLINK wireless router. We tried to localize the problem and have him plug in directly into the cable modem router and still got the same issue. We are not sure were to go. In call manager, I can see the device get registered, so we know it is working. Pleas help!