Robot that phones dad at Mobile World Congress
16 February 2011 Last updated at 05:02 GMT
A robot enables children to phone parents with a flash card is on display in at Mobile World Congress (MWC) in Barcelona.
It works through RFID radio wave technology and is part of a display about novel uses of mobile systems.
The show includes a house with blinds that can be opened and closed when the owner is in another country, as Rory Cellan-Jones found out.