Java - Sagem MYX5-2 User Manual

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Java™

You are the owner of a SAGEM mobile phone which gives you the ability to download applications and games to be executed on your phone
thanks to the built-in Java™ engine.
However, receiving applications from everywhere implies some basic knowledge of the possible effects of such download.
Thank you for spending a few minutes reading these pages: this will prevent you from performing action without measuring the
consequences.
WARNING: When running a Java™ application, you may be prompted to grant access to protected features. These features are protected because
using them could incur you cost, or involve your personal data. Read the security popup message carefully, to understand what feature is requested,
and decide whether it is legitimate for the application to perform it. In case of doubt, don't hesitate to refuse access by selecting the "No" button!
The security configuration menu is an expert feature! You must know exactly what you are doing before attempting to change security parameters
of a MIDlet. Misunderstanding changes may render MIDlet non functional and/or lead to higher risks for your private data or impact your airtime
consumption. Any changes in the security configuration are done under your responsibility. In no case shall SAGEM SA and/or your network provider
be liable for any damages deriving from or arising out of such changes in the security configuration.
You must be aware that applications downloaded to your phone could cause the phone to perform actions for which you will be billed, like making
calls and sending SMS. Depending on your operator's billing policy, you may also be charged to download the application because of airtime con-
sumption.
Security considerations
Java™ MIDP technology is an efficient way to provide powerful applications in mobile phones. It allows use, by "over the air" downloaded applications
or games, of the great features built-in in a mobile phone (SMS sending and receiving, multimedia playback and recording, network access...).
All these MIDP 2.0 features cannot be simply exposed to any MIDlet installed in the handset: a careful access control system is implemented in the
device to protect your private data and airtime consumption.
Access controls are gathered in 9 security groups:
Network access (GPRS/GSM data airtime consumption, HTTP/web connections...)
Auto invocation (MIDlet can wake up at a given time or when receiving a SMS)
Phone call (ability to initiate a phone call)
Local connectivity (IrDA or serial interfaces use by the MIDlet)
Messaging receive (SMS,SMS-CB interception by a MIDlet)
Messaging sending (SMS sending by a MIDlet)
Read User data (Subscriber identity, Phonebook, Agenda read access from a MIDlet)
Write User data (New phonebook or agenda entry)
Multimedia recording (ability to control camera or microphone from a MIDlet)
According to the security status of an installed MIDlet (see below), each of these security groups has one among 5 possible authorizations levels (listed
from the more restrictive to the more permissive):
Never
The security group completely prevents access to the protected features.
Per use
Each time MIDlet tries to use protected feature, user is prompted to grant access.
Per session
First time a MIDlet uses a protected function, user is prompted to grant access like in "Per use" authorization but access is granted
until the MIDlet terminates.
Single confirmation
The first time in the whole MIDlet life a MIDlet uses a protected feature, user is prompted to grant access. It remains valid until the
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