I downloaded the "csharpdemo" project posted on Github, but I can't deploy it because it doesn't find reference to CliWrapper.
Do I have to buy Zoiper license to try the project?
Link of the project => https://github.com/ZoiPer/csharpdemo
Thank you in advance
Yes, the API interface is available only in Zoiper Biz.
Note that currently Zoiper 5 doesn't have an API. It will become available with some of our future updates.