In a nutshell Fast Dormancy allows the RRC state machine to go to IDLE(CELL\_PCH) from CELL\_DCH without waiting for the timer to expire. Is there any OS (Android, Windows Phone, iOS etc) which exposes APIs using which we can invoke fast dormancy on 3G devices? Any pointers appreciated.

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> EDIT: Does any OS expose API's to
>  switch off 3G radio or switch radio
>  states(DCH,FACH,IDLE etc.)
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