hi all
was able to figure out a way for increasing volume. press the +/- key on the side of the fone while the call is in progress. repeat this for the three cases
1-while call is on handset
2-while call is on loudspeaker and
3-while call is on handsfree
u can set volume on scale of 1to10. and yes there is no way to increase fontsize and batry consumption is very high. wont last more than 2 days at ~35-40 min talktime. donot go in for this if betry is a BIG concern. otherwise an excellet fone.