Pronounce ellipsis 《●●● ●●●》 in Mandarin
等等 is the official and only globally recognized way to read ellipsis in Chinese, unlike in English there are more than one (et cetera, and so on, and so forth, etc.) 

In casual occasions you can also say 等 for short. In formal speeches like news broadcast it's always 等等. (Note I am talking about the pronunciation of ellipsis; I am not saying single 等 or other alternatives are grammatically incorrect or cannot be used in formal conversations.)