Hi Rafael,
in case you want to read more about LCLS, please see
http://osmocom.org/projects/cellular-infrastructure/wiki/Local_Call_Local_S…
it links the relevant specs.
--
- Harald Welte <laforge(a)gnumonks.org>
http://laforge.gnumonks.org/
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"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)