The call delay didn't reduce in my initial test. I'll try disabling suspend and changing settings according to proverb2's post.
EDIT 1 - Disabling suspend seemed to have helped reduce the delay by 2-3 seconds.
EDIT 2 - Setting hispeed_freq and inputboost_freq to 1200Mhz almost eliminated the delay.
EDIT 3 - I repeated the tests (atleast 10-15 times) in different situations (a lot of apps open, lot of apps installed, etc.) and I found that disabling suspend almost completely eliminated the call delay. I have about 200 apps installed, and the delay is a maximum of 2 seconds.
I think that the fix works IF suspend is disabled. Of course, I will wait for other users to test before jumping to conclusions.
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