possibility of changing the corresponding author in IEEE transaction Is it possible to assign one of the other authors as corresponding author in IEEE transactions during the peer review (i.e. changing the corr author) by any reason? If yes, at which stages it is possible? Is it possible when a paper received the A.Q (Accepted with mandatory minor revisions) status?
If not, is it possible to add the second corresponding author at any stage of peer review?
It's possible, but explain why you're making the change to the editor(s). Changing the authors of a paper is suspicious, but if you have a good reason to do it (e.g. original corresponding author moved/died/graduated, new corresponding author took over the project, etc) then the journal/publisher usually won't object.
Odds are you can make changes all the way up till you get the proofs, if you have good reasons.