Overview of Functions
The PBX supports the connection and control of various types of relays. A relay can be part of a connected door terminal or another connected device (e.g. an IP switch relay). Relays can have various functions on the PBX.
*Further help under Relay Operating Mode
*Note: The internal system relay with the identification number 900 (factory setting) has a special position. It can only be used in the operating type automatic configuration switchover to switch it on or off via phone. For this purpose, the relay is being switched on or off.
*Description of operation under Relays
Configuration 
Creating an IP switch relay.
External Devices > Device wizard
Creating a relay.
External Devices > Relays (actuators)
Configuring the operating mode for the relays.
External Devices > Relays (actuators)
Configuring relays.
External Devices > Relays (actuators) >
Switching on authorisation separately for switching of relays for the involved internal phones.
User > Phone numbers > > Configure > Authorisations
Switching on authorisation configuration-dependent/time-controlled for switching of relays for the involved internal phones.
User > Profiles > > Authorisations
Alternative functions on an internal or external Phone
Switch relay
*Description of operation under Relays