Voice Encryption in windows mobile 5.0

[Guest kapsid]

Hi,

I am trying to develop an application that would allow on-air encryption

of the voice data (similar to voice privacy option that's in some of the

mobile handsets). The communication channels that I am looking at are GSM.

As an example, if I talk over, say, GSM channel - the data-in-air must

be encrypted. Similarly, if I send an SMS, the floating-data must be

encrypted.

However, to start with, I do not know anything about how it can be

programmed in Windows mobile 5.0/6.0. I am, actually, working on Windows Mobile 5.0.

Any pointers would be very very helpful.

regards