Please Help Me With Example

[voliveiradev]

bedefaced, so as not to be creating a lot of issues, I will explain with an image what I need to be able to do, and who knows, you may be helping me. As you already seem to be an expert in the theme, what I need to do is something basic, a form in C #, which contains the following functions: Call, End Call, and I will save the call in an mp3 file. If it's not too much trouble, and you can support me with a simple example project, thank you very much. Thank you for all the attention so far.

[voliveiradev]

[voliveiradev]

Good evening, if you can give me an example of what I should program exactly on the call button and the end call button please. I believe that the way I did is not very well, please support your expert in this theme. Sorry for the inconvenience.