What doesちゃんin lesson 64 means?

[watermen]

In Beginner lesson 64 , there is a sentence, 私達はちゃんと電話しましたよ。 what doesちゃんmeans? Can someone help to translate this sentence. I think the PDF translation is not clear. Thanks.

[Jason]

The word is ちゃんと, and it means "properly" as in "to do something properly." In the context of this sentence, I would translate this as:

"We really did call!"