Changes
Android and iPhone users can rely on various software titles that use a secure Voice over IP protocol or a VPN approach to encrypting your calls. You will need a steady data (Internet) connection and the same application for all conversing parties. Note that by private - we mean conversations which are not accessible to anyone but the conversing parties.
* [https://www.linphone.org/ LinPhone]
* [https://ostel.co Ostel] using the CSIP simple client - ''no updates since November 2014''
* [https://ssd.eff.org/en/module/how-use-redphone-android RedPhone] - ''no updates since September 2014''
iPhone:
* [https://ssd.eff.org/en/module/how-use-signal-%E2%80%93-private-messenger Signal]
Multi-platform*[http://www.bleep.pm Bleep] messenger enables encrypted calls over the peer-to-peer Bittorrent protocol* [https://www.silentcircle.com/products-and-solutions/software/ SilentPhone] commercial solution from SilentCircle
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