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Using Phone Features 43
Changing GSM settings
To set the phone connection to GSM-only mode
You can set the phone connection to GSM-only mode to prevent the phone from accessing CDMA networks.
Tap Start > Settings > All Settings.
On the Personal tab, tap Phone > Network tab.
Under Mode of operation select GSM only from the drop-down menu.
To protect your SIM card with a PIN
The preinstalled Verizon SIM card may be preset with a PIN. You will be required to enter the PIN when turning
on the phone. When prompted, enter the preset PIN, and then tap Enter. If you enter the wrong PIN three
times, the SIM card is blocked. If this happens, you can unblock it with the PUK (PIN Unblocking Key) obtained
from Verizon.
If you do not want to enter the PIN to turn on the phone, you can disable it.
Tap Start > Settings > Menu > All Settings.
Tap Personal > Phone > GSM/UMTS Services tab.
Tap PIN/PIN2 and then tap Get Settings.
Clear the Require PIN when phone is used check box.
Tips • To change the PIN, tap Change PIN on the Phone: PIN/PIN2 screen.
• Emergency calls can be placed at any time without requiring a PIN.
To access and change the settings of GSM services
Your device can directly link to the Verizon network, and enable you to access and change the settings
of various phone services for your device when it is in GSM mode. Contact Verizon to find out about the
availability of phone services for your device.
Tap Start > Settings > All Settings.
On the Personal tab, tap Phone > Network tab.
Select the service you want to use, and then tap Get Settings.
Choose your desired options, and then tap OK.
The following are some of the optional phone services that you may find on your device.
Phone Services Usage
Call Barring Block incoming or outgoing calls.
Caller ID Set your caller ID options.
Call Waiting Enable or disable call waiting.
Band Set your network type and select the GSM/UMTS band to use.
Voice Mail and Text Messages Set the text message service center and voice mail numbers.
PIN/PIN2 Set the PIN number to be required when the phone is being used, and enables you to
change the SIM card’s PIN2 code.
Location Setting Allow the mobile phone network to detect your current location via your device’s built-
in GPS. This is especially useful in times of emergency.
TTY Mode Use a TTY (teletypewriter) device for users who are visually or hearing impaired.
Time Synchronization Choose whether or not to synchronize the time on your device with the mobile network.
For more information about customizing settings of phone services, see Help on your device.
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