PrivateGSM is an encryption software to make secure call using your own mobile phone. The software must be installed on both phones: the caller and the recipient, which must of course be supported by PrivateGSM. It does not change the normal use of mobile phones: it can be activated and hided in the background, or even turned off and started when needed. You can continue to use your mobile phone for traditional phone calls without any change. The very use of PrivateGSM "secure" calls, was designed not to change the experience of normal usage, in order to make easy to access an advanced technology through a very user -friendly interface. The quality of secure calls is equal to the normal calls one. Behind an interface so simple to use, it hides a highly sophisticated operating technology, based on symmetric encryption AES, also used in military filed and that makes the software impenetrable. PrivateGSM can be used for private purposes and for business purposes, depending on the version. PrivateWave also offers the Enterprise VoIP Security Suite that, thanks to PrivateGSM, extends the concept of security for the entire corporate network. Once installed on mobile phones, PrivateGSM gives you the option to encrypt calls between the users (i.e both caller and called need to have the software installed). Using PrivateGSM you can communicate easily and securely with your contacts. What if your contacts do not have PrivateGSM? No problem. With the "Invite" option of the PrivateGSM menu, you can send your contacts a download link so that they can install and use the software.