H. P. Grice, "J. L. Austin on uptake"

comparing stating to what we have said about the illocu-  tionary act, it is an act to which, just as much as to other  illocutionary acts, it is essential to ‘secure uptake’ : the  doubt about whether I stated something if it was not  heard or understood is just the same as the doubt about  whether I warned sotto voce or protested if someone did  not take it as a protest, &c. And statements do ‘take  effect’ just as much as ‘namings’, say: if I have stated  something, then that commits me to other statements:  other statements made by me will be in order or out of  order.