The wiki must be referring to some obscure comic book or novel.  I just know that Anakin, Obi-Wan, Ahsoka and every Jedi from the clone wars did not have telepathy.

They used comm-links and if they became captured they were pretty much screwed.

They could project simple concepts and emotions like:  Danger!  I'm over here.  Help!  

Even then the range couldn't be all that great since there are countless times the Jedi were searching for their lost allies.