Netgear 301U User Manual Page 9

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Rev 2.1 Jun.10 9
Note: If SIM security is
enabled and you fail to
enter the correct PIN
number within the desig-
nated number of attempts,
your SIM card will be
disabled and become
unusable. If that happens,
contact your carrier.
Change your PIN
To change the PIN assigned to your SIM:
1. Select
AirCard Watcher > Preferences... > SIM.
2. Click Change PIN.
3. In the Old PIN field, enter your PIN.
4. Enter a new PIN in the New PIN and Verify New PIN fields.
5. Click
OK.
If you enter the wrong PIN, the fields are cleared and the remaining attempts field
is reduced by 1. If you fail to enter the correct PIN within the designated number
of attempts, the SIM card becomes blocked. If this happens, see Unblock the SIM
on page 13.
Blocked SIM
In any operation that requires you to enter the PIN, you are allowed a certain
number of attempts to enter the PIN correctly. If you fail to enter the PIN correctly
within that number of attempts, the SIM becomes blocked.
If the SIM becomes blocked, your SIM card is unusable until it is unblocked.
Watcher displays the message “Blocked SIM”. If your modem is configured to do
so, you are prompted to enter a PUK code, obtained from your carrier, to unblock
the SIM. See Unblock the SIM on page 13.
Send and receive SMS messages
SMS (Short Messaging Service) allows you to send and receive short messages
(usually not more than 160 characters) through the network. Check with your
service provider to determine if you have access to this service.
If you have access to this service, you can receive messages by any methods
supported by your service provider.
Ways to receive SMS messages
Depending on your service provider, others can send SMS messages to you in
one or more of these ways:
Some wireless service providers have web pages from which anyone can
enter a message and direct it to your phone number. In this case, anyone who
has access to the Internet can send you a message, provided he or she
knows your phone number.
Some service providers allow SMS messages to be sent through Internet e-
mail applications. Your phone number is then used as an e-mail address (for
example, 6045553993@serviceprovider.com or 1414960101@servicepro-
vider.co.uk).
Some products, such as the modem and many mobile phones, have software
that allows you to send messages to other subscribers, using their phone
numbers to direct the message.
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