I have a TDM400P with 4 FXO modules on it. When I try to dial into the * box, I can see it executing the dial plan, but when I pick up one of the extensions, there is silence in both directions. I have played with the txgain and rxgain values in zapata.conf. I have tried 1.5 and 5. Is there a limit to the value you can use in it? No matter what value I use there is still silence. I am in Australia and not sure if there is anything else hidden away in some other conf file that needs changing. Is there? I have the indications.conf set to au as well as in the zaptel.conf. Any help is greatly appreciated. Regards, Greg