We do not request access to your phone or PC contact list, ensuring the safety of both you and your interlocutor.
No additional registration and authorization is required for making calls via SJ IM. It combines both chat and calls.
Voice calls via SJ IM may not be intercepted, since in addition to PGP all conversations are encrypted with AES algorithm.
Voice calls are performed via anonymous servers with disabled logs.
Data transfer between the clients is based on P2P principle (Peer-To-Peer).
XMPP technology allows using your own servers, which in turn will provide additional communication security by means of IM SJ.
Voice communication in SJ IM is supported by Android, iOS and Windows. That is, you will retain your mobility without having to use a specific device.