Automatic fallback is used in the following situations:

  • The maximum number of parallel VoIP connections has been reached (all VoIP lines are in use)
  • The SIP server for the VoIP connection cannot be accessed (i.e. registration failed)
  • The dialled VoIP connection has not yet been configured or has not been configured correctly (e.g. incorrect password, missing mandatory fields)
  • The base station does not have a connection to the Internet, for example, because your router is disabled or not connected to the Internet  (LAN cable unplugged)

Exceptions when Fallback is not initiated:

  • The VoIP call is initiated through the "Select Line" menu
  • The Fixed Line is not plugged in


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