What does call: null mean on iPhone?

What does "call: null"mean on iPhone?

Sounds like an error or stack overflow

Was it a dropped call? Does it come up when trying to make a call and does it allow you to continue?

does it occur after a call? Is the phone still immediately functional?

if it's just that it keeps coming up and doesn't interfere, i wouldn't worry about it. Even though i don't have an iphone, i have been getting error messages on my phone, and so have others in my area. I think it has something to do with the signal strength because it started around the same time i started having signal strength issues with over the air channels.

at any rate, below is link that may actually contain the answer, or at the least help extrapolate one. Maybe you can find a technohead who can translate it into english. (:

"… The /dev/null device is a special file, not a directory, so one can't move a whole directory into it with the Unix mv command. The rm command is the proper way to delete files in Unix… "

Double dutch, what is an iPhone, and external mobile or similar