i have inserted a nano sim card on kingfisher board and tried call but could call is not connecting (operator saying switch off)
KF BSP doesn't support sim.
See below for supported functions.
I'd like to clarify for detail information:
 Hardware setup: Which model of starterkit + kingfisher board you are using? (e.g. H3 Starterkit + Kingfisher)
 Software version: Which software you are using? (e.g. Linux or Android, which version)
Hardware setup : H3 SK + KF
Software setup : Linux