How to use

The prerequisite for using ZSipOs is a VoIP telephone (SIP) connected to your LAN.
The ZSipOs box is connected between the LAN and the telephone.

Using the phone works as before:
Dial, ring, pick up, speak and hang up.

The ZSipOs-Box display shows you the current connection status. If you are connected to another ZSipOs user, you can use the "Go Secure" button to encrypt the existing connection absolutely securely. If the connection is encrypted, it can no longer be eavesdropped from the outside.

Now we still have to make sure that no third party has interposed itself between your communication partner and you. To rule this out, you and your conversation partner simply verbally compare the fingerprint (SAS) of the current connection key. If you have compared the SAS and confirmed it at the ZSipOs-Box, the connection is trustworthy.

Now you can be sure that the connection cannot be intercepted in the network.


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