iPhone experts, why am I getting this error message all day long?

[Grumpyguy]

The building I work in, has a dead spot, probably 20x20, right where I work. All my calls go directly to voice mail.

Anyway, after I returned my missed call today, I've been getting this message about every twenty or thirty minutes.

Nothing was or is attached to the phone when I got/get the message.

Thanks,

Bryan

[Monster]

reboot

[space-time]

how did you take that nice screenshot?

[OWC Jamie]

are you naked ?

[Grumpyguy]

screenshot= power button and home button held at the same time.

Downloaded the manual and seems Apple suggests to clean the dock connector. There was some dirt in there, maybe that was the cause....

[Done]

I would get that when I connected it to a FM transmitter in my car, I quit using it. Like you said the message would keep coming up, it would eventually just stop without doing anything.

[Grumpyguy]

Message hasn't popped up since I cleaned the dock connector.