Jitsi

From Guardian Project Wiki

Revision as of 16:52, 18 April 2012

Jitsi Setup

Note: this currently only supports ZRTP encryption key exchange when making outgoing calls from Jitsi.

Go to http://jitsi.org/ in your browser. Download the program onto your computer. Jitsi (previously SIP Communicator) is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features.

Now that Jitsi is installed, go to the applications folder and open it.

Under Network choose SIP in the Wizard.

Click Sip id. Add the user name & server detail we sent to you in the email (ex. 1001@ostel.me).

Click Password. Add the password we sent to you in the email.

Click Add to continue.

You should see it read "Registering" for a few seconds until the bar to the right of your account name turns Green and reads SIP ON Online.

Here is an example of account settings to set up the Ostel client. Replace the existing username and password with the ones sent to your email. The username will serve as your phone number.

Congratulations! You've successfully signed in.

Jitsi ZRTP FAQ

Secure video calls, conferencing, chat, desktop sharing, file transfer, support for your favorite OS, and IM network. All this, and more, in Jitsi - the most complete and advanced open source communicator.

The ever growing use of Voice over IP (VoIP) and other media applications triggered a more widespread use of the Real-time Transfer Protocol (RTP). Thise protocols is the workhorse for VoIP applications. Many VoIP applications send RTP data over the public Internet in clear, thus the data is not protected from eavesdropping or modification. Therefore most VoIP applications are regarded insecure today. During the last years several activities started to enhance the security of RTP.

The Secure Real-time Transfer Protocol (SRTP) enhances security for RTP and provides integrity and confidentiality for RTP media connections. To use SRTP in an efficient way VoIP applications should be able to negotiate keys and other parameters in an automatic fashion.

ZRTP is a protocol that negotiates the keys and other information required to setup a SRTP audio and video session

While it is important to look at the technology, the protocols and alike, it is also important to look at the implications a specific technology may have on its implementation, deployment, and usability. Usability is of major importance for VoIP peer-to-peer applications: these applications are mainly used by non-IT persons. Therefore the handling must be simple, easy to use, and shall not require special infrastructure or registration.

http://jitsi.org/index.php/Documentation/ZrtpFAQ