Convert OGG to 3GP

This is certainly a doable and fairly simple effort, since many media editors and converters will allow you to convert Ogg Vorbis Audio Files directly to 3GPP Multimedia Files (.ogg to .3gp conversion). This relates to users attempting to encode OGG audio to 3GP video.

For a reliable conversion, use tools, such as Nero Recode or SUPER, which will allow you to import OGG audio files and export them in 3GP format.