It turns out that many customers in UK experience severe problem with poor signal / reception on their iPhones.
The first complain appeared on November 11, 2007. That is two days after the device was officially launched in UK.
A customer nicknamed Darkzoo writes:
Yes, my signal is mostly 'No Service', with the occasional one bar, despite
showing coverage on the O2 site - gutted.
In the past, visiting friends with
O2 have had a poor signal here, but better than I am getting.
Yet another user writes:
Same here. Been on Orange for 15 years and bought iPhone on Saturday with O2.
Never been unable to get a signal here with Orange but have only managed one bar
on rare occassons on the iPhone in 48 hrs. Is this a fault with the phone or do
O2 simply not have as good a coverage as Orange?
You can view the forum thread here. By the way, it is very active, which means that there are increasingly more people experiencing the problem.