Standby SwyxServer Requirements for the SwyxStandby option pack SwyxPhone
To enable an immediate switch to the other server, the latest firmware version (SwyxPhone version v6.20 or higher, firmware version v5.4.6 or higher) must be installed on all SwyxWares involved, if the SwyxStandby option is used.
The Whitelist with system phone licenses will not be automatically synchronized with the master server. Install the Whitelist on the standby server as well and keep the file up to date. See also Install and update Whitelist.