Follow these steps to set the cellular system type.
1.Press 
. The phone displays the cur- rent setting.
2.Repeatedly press 
or 
until you see
the setting you want to use, then press 
to select and store that setting.
ROAMING
Using the phone in a city where you do not sub- scribe to a cellular service is referred to as roam- ing. When you roam, ROAM turns on steadily if the phone is using its home type system, and flashes when it is using a cellular system that is different from your home system
In some areas, the cellular system’s computer au- tomatically recognizes roaming telephones. In oth- er areas, you must contact the service provider before it can recognize your phone. The operator needs to know your telephone 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: Your phone’s ESN is under the phone’s bat- tery. (However, the roaming cellular service provid- ers can usually automatically determine your phone’s ESN when you call.)
33