# IP system phones in focus

IP system phones are registered on the communication server via their MAC address. They communicate like digital system phones via the DSI-AD2 protocol with the communication server.

IP system phones call be used anywhere on the IP network, provided the connection to the communication server meets the VoIP (Voice over IP) quality criteria.

Available topics

Putting an IP system phones into operation

Putting IP system phones in the AIN into operation

Local phone configuration

Addressing methods

Registering IP system phones on the communication server

Operation and maintenance

Parent topic: Product information
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