Puk2; Call Barring Password; Health And Safety Information; Exposure To Radio Frequency (Rf) Signals - Samsung SGH-X640 Manual

Access codes

PUK2

The PUK2, supplied with some SIM cards, is
required to change a blocked PIN2.
If you key in an incorrect PUK2 ten times in
succession, you cannot use the functions requiring
the PIN2. Contact your service provider for a new
card.
You cannot change the PUK2. If you lose the code,
contact your service provider.

Call barring password

The 4-digit call barring password is required when
you use the Call Barring function. You obtain the
password from your service provider when you
subscribe to this function.
You can change this password using the Change
barring password menu option (Menu 3.2.7). For
further details, see page 76.
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Health and safety
information
Exposure to Radio Frequency (RF)
Signals
Your wireless phone is a radio transmitter and
receiver. It is designed and manufactured not to
exceed the emission limits for exposure to radio
frequency (RF) energy set by the Federal
Communications Commission (FCC) of the U.S.
Government. These limits are part of
comprehensive guidelines and establish permitted
levels of RF energy for the general population. The
guidelines are based on the safety standards that
were developed by independent scientific
organizations through periodic and through
evaluation of scientific studies.
The standards include a substantial safety margin
designed to assure the safety of all persons,
regardless of age and health.
The exposure standard for wireless phones employs
a unit of measurement known as Specific
Absorption Rate (SAR). The SAR limit set by the
*
FCC is 1.6W/kg.
SAR tests are conducted using standard operating
positions specified by the FCC with the phone
transmitting at its highest certified power level in all
* In the U.S. and Canada, the SAR limit for mobile phones
used by the public is 1.6 watts/kg (W/kg) averaged over
one gram of tissue. The standard incorporates a
substantial margin of safety to give additional protection
for the public and to account for any variations in
measurements.
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