When Indonesia declared its independence on 17 August 1945, the new country needed an effective tool to announce this to the whole nation and to the world.

At 19:00 on the same day, M. Jusuf Ronodipuro, founder of the RRI, read the proclamation of news on Hoso Kyoku, Japanese occupation radio.

[3] At that time, radio broadcasting was the most powerful media in order to deliver the message to reach the audiences around the world.

Her broadcasts were targeted at Western listeners and she gained the nickname "Surabaya Sue" due to her support for the Indonesian nationalists.

In addition, the Voice of Free Indonesia was also the name of an Indonesian Republican magazine that was marketed at Western correspondents.

[6] Currently, VOI serves people abroad with programmes broadcast in 9 different languages, English, French, Spanish, German, Arabic, Chinese, Japanese, Dutch and Indonesian.