"An official who has been briefed on the matter, however, told CNN that the whistleblower “didn’t have direct knowledge of the communications.” The official said that the concerns and subsequent complaint came in part from the whistleblower “learning information that was not obtained during the course of their work.”
https://www.washingtonexaminer.com/news/intelligence-whistleblower-didnt-have-direct-knowledge-of-the-communications
Clearly, this matter has nothing to do with the whistleblower act. The leaker is not a whistleblower, since he had no knowledge of the contents of the phone call. This is just one more piece of information rebutting the original reports.