Problem in AudioSettings page , mic activating.

[s265925]

Hi,
I successfully build and customized the air client , everything working , but i have question.
When user joins on a meeting in AudioSettings page when user try to toggle/enable mic, the speaker drops to "ear speaker" of phone. but if user just stay with listen only mode the Audio is using loud speaker of phone! (Tested on Android v5 v6 )
is it normal ?
Can i change this or force to always use normal speaker instead of "ear speaker"?
If yes ? where should i change the code?
I googled a lot , but not found anything .
Thanks for the help.