Star Trek: Insurrection (1998)

Revealing mistake: When the villagers are running from the attack on their village, they run across a bridge that gets blown up. If you look, you can see that just as it explodes, several people change the direction they are running so as they can plunge dramatically into the water. (00:55:40)

Trivia: In the end credits, an actor is credited as playing Young Ruafo. There are no scenes in the film which this character appears, this is a scene cut from the film, but they forgot to erase the credit. The explanation is that young Ruafo was filmed in the original Insurrection ending, before producers decided on a different (more action based) death for Ruafo and so had him burn on the exploding ship.

Question: In the scene near the end, fighting in the super structure, Picard doesn't seem to have a com device (no jacket). How would that work when Riker contacted him?