Hi Gents, What can be wrong with my settings? Pleas help. I have a simple Portech VoIP-GSM gateway in an African country where i try to terminate calls. My setup is: Skype<->Skypiax<->Portech Gateway<->GSM Phone I have this setup in place right now. Calling from Europe, people can understand me down there without a glitch. But I can barely hear what they say. I replaced the setup with: Skype <->Skypiax<-> Skype. No change in result. Then I tried with the Howler G729 codec: Setup 1: Xlite <-> Freeswitch <->Portech <->GSM Phone: No change in result. Setup 2: GSM Phone <-> Voip.MS <-> Freeswitch <->Portech <->GSM Phone: No change in result. In all these cases, the communication is perfect in one direction but very choppy in the orther. The only thing that works is direct Skype to Skype. And it works perfectly, suggesting that the connection is probably not the issue. The speed i could measure is 140kbs/30kbs. And assuming the the internet connection is the issue, i would have hoped that if Skype<->Skype works, then Skype<->Skypiax<->Skype would also work. Any idea? Max.