from SwyxWare on, SwyxWare supports the encryption of call data via "Secure Real Time Transport Protocol" (SRTP). The protocol, designed for real-time communication, means security for voice data transmission. The data is encrypted, making listening to calls impossible.

The following encryption modes are available:

You can specify this setting individually per user, or globally for SwyxServer. It must be remembered that the selection of SwyxServer in the global settings has an influence on the configuration options in the user and trunk properties within the "Encryption" tab:

In the SwyxLink trunk, the encryption mode is taken from the server settings and cannot be changed. Only one key must be assigned. See The "Encryption" tab.

The setting of the encryption mode which was set within the server properties has no influence on the encryption mode within the SIP trunk. Voice data encryption on SIP trunks requires TLS as transport protocol and must be supported by the SIP provider. The corresponding configuration is defined in the properties of a SIP trunk group. See also The "Encryption" tab of the SIP Trunk Group.

See also This is how you specify the encryption mode globally for SwyxServer.