public void AddSubUser() { // Create a new subuser for account_id = 1 try { var voximplant = new VoximplantAPI(); var result = voximplant.AddSubUser( "John_McClane", "pssw0rd" ).Result; Console.WriteLine($"Response: {result.ToString()}"); } catch (Exception e) { Console.WriteLine($"Error: {e.Message}"); } }