03:00 --catching up with news about family and friends
01:00 --on personal problems
01:00 --on work/school
00:42 --current affairs
00:24 --weather
00:24 --Chatting about the opposite sex
00:12 --should be spent on celebrity gossip
01:42 --on laughing
00:12 -- of silence
01:00 --General topic
-------------------------
09:36 --Total
quoted from the news http://timesofindia.indiatimes.com/HealthSci/9_min_36_sec_Perfect_phone_call/articleshow/3733906.cms
