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Sprint Worldwide Wireless Service
The following are some of the GSM services that you can configure.
GSM Services
Usage
Call Barring
Allows you to block certain types of incoming and
outgoing calls on your device. This would be useful, for
example if you allowed someone to use your device for a
short period of time. (See “Using Call Barring (GSM)” on
page 17 for details.)
Caller ID
Allows you to set caller ID options. (See “Caller ID” on page
19 for details.)
Call Waiting
Allows you to enable or disable call waiting. (See “Call
Waiting” on page 19 for details.)
Call Forwarding
Allows you to divert incoming calls to another specified
phone number.
Voice Mail and Text
Messages
Shows the text messages service center phone number and
your voicemail number for accessing voicemail messages
when you are roaming on GSM networks. (See “Voicemail
and Text Messages” on page 20 for details.)
Location Setting
Allows the GSM network to detect your current location via
your device’s built-in GPS chip. This is especially useful in
emergencies.
TTY Mode
Allows the use of a TTY (teletypewriter) with the device for
users who are visually or hearing impaired. The available
modes are the same as in CDMA.
Time Synchronization
Allows you to choose whether to synchronize the time on
your device with the GSM network.
