Star Trek: Insurrection (1998)

Revealing mistake: In the beginning scene on the Bak'u planet the stone bridge bends under the weight of the child. (00:04:15)

Trivia: The original script for Star Trek 9 called for Picard to face off against an old friend of his from the academy called Duffy who had defected to the Romulan Empire.

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?