La vostra cerca - communication control based extension ((a libre) or (de libre)) - no coincideix cap recurs.

Potser podríeu intentar variants ortogràfiques:
communication control » communication concepts, communication culture, communication channel
based extension » based extraction
control based » control case, content based, context based
de libre » de livres, de lie, _ libre
a libre » _ libre

Pot obtenir més resultats si ajusta la seva cerca.