Nam Selection; System Select - Samsung SCH-R250 User Manual

NAM Selection

The NAM Selection option lets you select your preferred system (NAM
1 or NAM 2), provided your phone has a NAM 2 number programmed
into it. (For more information, contact your Wireless Provider.)
In Standby mode, press Settings
1.
NAM Selection.
Select NAM1 or NAM2 and press OK.
2.
Important!: If after setting your phone to Lock itself On Power Up, you change the
NAM Selection setting from NAM 1 to NAM 2, but there is no number
programed into NAM 2, you won't be able to access your phone. You
must call your Wireless Provider's Service Center to unlock your
phone.

System Select

The System Select option lets you disable or enable your phone's
ability to roam (that is, automatically select a network to use when
outside of your Home Area).
In Standby mode, press Settings
1.
System Select.
Select Home Only (roam local area only) or Automatic (roam
2.
outside the local area).
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Phone Settings
Phone Settings