The phone works OK on Vodafone until I get to work in the City of London
(near London Bridge). On some days, but not all, the phone shows a
signal but I cannot make or receive calls until I reboot my switching
the phone off and on again.
Also, the battery runs down within eight hours when I have this problem.
I can't work out whether the problem is with the phone or Vodafone.
Any ideas?