Menu 5, System Select
Your “home” network (that is, the network
through which you have cellular service) is
either of type “A” or “B”. Many areas that
provide cellular service have both an A and
B system. The phone shows the selected
system type (A or B) in the upper left corner
of the display.
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With Menu 5, you tell the phone which system to
choose when you roam (that is, try to use your phone in
an area other than your “home” network). Your phone
must choose which system to use (A or B) so it takes the
information from your choice in Menu 5.
Contact your cellular service provider for information
about the roaming agreements they have with other
cellular service providers.
To Select the Roaming Mode
1) Press
WWWWWý
(Or press
5). The phone shows the
current System Select
setting.
2) Press
Wýuntil you see the option you want (ANY,
HOME TYPE A or B, NON-HOME TYPE A or B, HOME
AREA, or PREFER’D) then press
.
ANY means that the phone uses both systems A and B.
The phone uses its home system when possible and the
non-home type system when service is not available in
its home type system.
HOME TYPE A (or HOME TYPE B) means that the phone
uses only its home type system (A or B). Note that the
phone displays
HOME TYPE A or HOME TYPE B
depending on whether your phone’s home system is
type A or B.
NON-HOME TYPE A (or NON-HOME TYPE B) means the
phone uses only the non-home type system (A or B,
depending on what your phone’s home system type is).
HOME AREA means the phone uses only its home area
and home system. In other words, it cannot roam.
PREFER’D allows you to use information programmed
into your phone by your service provider. This
information lists the networks in which the phone will
provide the best possible service.
•
Press
ýto select the PREFER’D option.
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Depending on the programmed information, and the
actual network availability in the area where you are
using the phone, selecting the
PREFER’D option has the
effects described below.
Note: The
PREFER’D option appears only if your service
provider has programmed a list of preferred networks
into your phone.
If you select
PREFER’D, your phone may be able to
select the preferred (e.g., low-cost billing rate) type of
network. If service is available only within a non-
preferred type of network, the
part of
will flash and only emergency calls to the emergency
number programmed into your phone may be possible.
Note: When you select
PREFER’D, and you’re within a
non-preferred network, only calls to the emergency
number programmed into your phone (e.g., 911 or
another official emergency number) may be possible.
How to Roam
In some areas, the cellular system automatically
recognizes roaming phones. In other areas, you need to
contact the service provider before the system can
recognize your phone. The operator needs to know
your phone number, your phone's ESN (electronic serial
number), and how you plan to pay for your calls. There
is normally an additional charge for roaming calls.
Note: The ESN of your phone is located under the
battery of the phone. (However, the ESN of your phone
can normally be read over the air by the roaming cellular
service providers when you call them to register your
roaming presence on their cellular network.)