History of the Project Our calling Radio Sião Osasco is a 100% Catholic Radio in the Service of Evangelization. Through God's call in 2009, in the month of December, Rádio Sião was born with the proposal to Evangelize through the Internet. With 100% Catholic programming in all its content. * Sermons; * Moments of Prayer; * The Holy Rosary; * Chaplet of Mercy; * And songs with content based on Catholic Doctrine; Our Mission Our Mission is to announce the Word of God and sow the Culture of Penteco