Firstly, this forum is not very popular so yes it will take some time for people to read and respond to your question. I think thats pretty obvious as only a couple of topics have been posted since you first posted the one you are referring to. Please be patient, or purchase technical support from NCH if you need a faster answer.
Secondly, NCH is not obligated to provide any support on this forum, this forum is intended for users to talk to other users about the software. So, you'll have to wait for community members like myself to respond, and if we don't know the answer your topic may not be answered.
Thirdly, NCH never designed this software for use on Linux under wine as far as I know. Wine has issues, its not perfect, so when things don't work with it, its usually a case of Wine has poor support for 'emulating' that feature, and not a case of the product being defective. Also because this software was not meant for linux, you will probably not find any other users here who have run this on linux and it will be very hard to get an answer from somebody with experience with that.
Finally, all I can say is I don't personally know the answer, it could be WINE's lack of support for it, it could be incorrect port numbers, it could be the receiving party cannot receive the audio that is transmitted, or it could be the software can't recognize the audio device to send the audio from.
