"Grimly Curmudgeon" wrote in message
...

On Tue, 30 Oct 2012 05:04:40 -0700 (PDT), wrote:

I bought an Iphone 4 (on O2) a while back and am having problems with
coverage, often have no coverage showing, in settings it was set to
Automatic for the network, Is it a good idea to change this to o2? if
not, why not?

Have it set on your contracted network (O2) for if you don't, and it
keeps connecting via other networks you'll get charged for roaming.
Roaming is fine if that's what you want and don't mind the costs.

Sorry to disagree but it won't roam to another network unless you leave the
country. It will then roam but only to those networks with a reciprocal
agreement with O2. However you might find you get better battery life with
it locked to 02 as its not forever searching for a better signal.

Call roaming only incurs cost if you make or receive a call on the foreign
network. You can prevent data roaming by switching it off in
settings/general/network. I leave mine switched off, only switching it on if
I need to pick up emails whilst overseas and don't have access to free
wi-fi. Picking up about ten emails and replying to three this way whilst in
New Zealand cost me £11.75 !!!!

If your area does not have 3G try switching that off. I also find that my
iPhone performs badly in sending texts when the signal is poor. So often I
send when I have a signal showing only for the signal to disappear
immediately. This is worse when 3G is unavailable and improved slightly in
those areas by switching 3G off in Settings/general/network once more.

Mike