I download ZoiperSDK example C# version and when i'm trying to compile i've got ZoiperAPI error.Where can I download missing file ?
Did you download one of the files available at https://www.zoiper.com/en/voip-sdk/zoiper-api-examples ?
The API works with Zoiper 3 Biz only. To be able to use it, you would need to have a license. To by one, visit the Zoiper shop here: