Lets your third-party apps talk to your gateway through the guidance of developers.
To let your Application/Website talk to VoxyLine Gateway, you need to follow as below:
Action url: https://www.voxyline/api/webscr
The VoxyLine gateway will respond as follows to the notify_url you posted. From there, you can deal with the response in the manner of your business logic. The sky is the limit from here.