http://forum.xda-developers.com/galaxy-s3/...kelock-t2025570

above thread is from 2012

someone from malaysia say here support fast dormancy (FD)
but in the thread, he say FD is not working unless enable data roaming,

i dont have much knowledge in this, any expert been here long enough to know about this?
but usually i read say disable FD will save battery if telco dont support

in short, DiGi support FD or not?
really need to enable data roaming?
need to keep FD on or off?

Something like that.