The Holy Tactician Paladin gets the Battlefield Presence (Su) at 3rd level. With it he can share teamwork feats with his allies.
In the description it states that the allies have to be able to hear the paladin get the benefit. It doesn't state that they have to be able to understand him, too.
So if one ally doesn't understand the pally, like an oracle with the tongues curse, does he get the teamwork feat?
It does not say it is. I know it says the team mates must be able to see and hear the paladin, but maybe the way the paladin talks such as the tone of voice is enough.