Kasumi (in the form of "f8" (ciphering) and "f9" (integrity) is beginning
to be deployed in UMTS (WidebandCDMA) mobiles as we speak. But an exact
specification of how to use Kasumi as A5/3 has only just been agreed; it
will be 6-12 months (at least) before any significant amount of equipment,
either fixed or mobile, will be produced and deployed, and it will be a
couple more years after that before there will be significant probability
that a call is encrypted using A5/3.