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Frequently Asked Questions

On which handsets Message in a Bottle works?

Message in a Bottle works on all handset having at least Java MIDP2.0 e WMA 1.0 (JSR120). Refer to your handset's technical specifications to see if it is compliant with  Message in a Bottle.

I don't know if my handset is compliant with Message in a Bottle and I don't have technical specifications. How can I know if my handset is compliant with Message in a Bottle?

Message in a Bottle is compliant with all Java MIDP2.0 and WMA 1.0 handsets. In the following urls ther are two partial lists of compliant handsets:

J2ME Devices - Sun Microsystem official page:
http://developers.sun.com/techtopics/mobility/device/pub/device/list.do?apiId=42

J2ME Polish:
http://www.j2mepolish.org/devices/devices-wmapi.html

If your handset isn't present in these list please, download and try.

How can I install Message in a Bottle on my handset?

Each handset model has its own installation procedure for installing Java applications. Some can install Java applications only by download from wap (es. all Nokias Series 40 such as 6020, 6021, 6080, etc), some other can installa also from external memory card or by bluetooth (es. Nokia Series 60, SonyEriccson P900, P910, Z1010, Siemens SX1, SK65, etc) o infrared port (Siemens CXT65, C70, etc).
Refer to the documentation related to your handeset and to the instructions reported in Installation.

Can I use Message in a Bottle on my Windows Mobile smartpthone?

Message in a Bottle for Windows Mobile 2003/2005 is currently in development.
Please come back later to know when it will be released.

It is not clear if SMSs are encrypted by elliptic curve key of by AES key.

SMSs are encrypted by AES key using the key generated through  Diffie-Hellmann key agreement algorithm applied to elliptic curve cryptography.
For more informations see:

Diffie-Hellman key agreement

Who can read my encrypted SMS?

Nobody. Only the owner of the elliptic curve private key can read encrypted SMS.

On incoming encrypted or signed SMS  Message in a Bottle doesn't open automatically

Each handset model has its own activation mechanism on incoming encrypted/signed SMS. Some opens Message in a Bottle (ex. SonyEriccson P900, P910, etc.). Some others notify users and ask him what to do. (ex. Nokisa Series 40 such as 6020, 6021, 6080, etc). Some others show in the SMS repository an SMS with a special icon with destination Message in a Bottle (ex. Siemens CXT65, C70, ecc).

I wish to use on of my ring tones for incoming encrypted/signed SMS. How can I do?

On some handsets Message in a Bottle cannot use custom ring tones. If it is your case, you can use one of the internal ring tones available in the menu
Settings --> Ringtones.