https://www.alternet.org/2019/10/maine-senator-suggests-that-at-least-20-minutes-are-cut-from-rough-transcript-of-trumps-conversation-with-zelensky-we-dont-know-what-is-missing/
The words “rough transcript” have often been used to describe a publicly released summation of President Donald Trump’s now-infamous July 25 phone conversation with Ukrainian President Volodymyr Zelensky; it was not a full transcript but rather, was based on what notetakers wrote down. And Maine Sen. Angus King, an independent, has suggested that at least 20 minutes of the conversation are missing from the rough transcript/White House memo that has been publicly released.
certainly was not a scientific analysis of the transcript, but it is an interesting question. Doubt we will ever see the full transcript.