On Sat, 28 Oct 2006 10:59:27 +0100, "DervMan" <thedervman@gmail.com>
wrote:

>If it cannot locate a valid network, it *may* go into power save mode. More
>likely it'll ramp up the signal (this doesn't bother me) to find a network,
>running the battery down quicker (this does bother me).

The handset will listen for the available networks. When it finds the
home network for its sim card, it will try to register. It will be
refused, and it will then give up. It won't retry at higher power: it
knows when it is not welcome.

If it does not find the home network, it will try the available
networks in turn, trying to roam. Once rejected by each, it will
remember than and not try that network again. It's almost certain to
have done that months or years earlier, so it will know not to even
try.

--

Iain
the out-of-date hairydog guide to mobile phones
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