What about a comprimise of sorts, hide it, then go somewhere else and call her? That way if she is in league with the bad guys they aren't led right to you. And if not you can go back and pick up or pass it off on someone else. It is possible (however unlikely) that it wasn't even her that put it in there. This is our uncle's comm isn't it? The stormtrooper we shot earlier at our uncle's house could have put it there, in case Uncle Lance came back for it, and that is why they came to the bar looking for us.
The comm link is yours, you brought it from home. The stromtrooper could not possibly have planted it, since it was in your possession the entire time, save for those few moments in the bar when you handed it to Callie, who "fidgeted with it beneath the bar for a few minutes." Ergo, you're almost certain Callie put it there. (Unless it was your mom back at home - she IS rather overprotective.) The only other possibility is that someone swiped it off you and then managed to slip it back into your pocket, all without your knowledge.
SLC, how would you determine whether or not Callie is "in league with the bad guys" just by calling her?