I'd say the most likely story is that he missed his flight and the cell phone has gone dead, which means, no messaging and no numbers as they're all stored in the phone. So he'll probably try and ring home (being a number he would remember). Wouldn't be too worried yet, wait and see what your folks say.
__________________
"The only way to discover the limits of the possible is to go beyond them into the impossible." - Arthur C. Clarke
|