Roaming Indicators
When the phone begins roaming, it beeps, displays ROAMING, and lights the roaming indicator (
). For a description of the two states of the roaming indicator, see “The Display and Connectors” chapter. Some cellular systems can recognize a roaming phone automatically. In other systems, you must contact the cellular operator before the system can recognize the phone. You will need to give your phone number, your phone’s ESN (electronic serial number), and how you plan to pay for your calls. There is usually an additional charge for roaming calls.
Note: The ESN for your cellular phone is printed under the battery pack on the back of the phone.
Menu 8, NAM Selection
Left F(Menu) 8
▼to phone number
to’use
left F(Select)
The cellular operator programs your phone with software called a Number Assignment Module (NAM) when you register for service. You can register your phone with up to 3 cellular systems, each giving your phone a different NAM, which contains unique data for you such as your phone number, home service area, and
Only one NAM is in effect at a time. When you select a phone number, you are also selecting which system you are using as your home system. The first phone number displayed with this menu is the phone number in use.
Note: You need at least one active number to make calls. You cannot change from one NAM to another during a call.
44