The present invention concerns a device comprising a first interfacing means for linking to a residential phone wiring and a second interfacing means for accessing a network, the residential phone wiring being connected to a first phone subscriber line interface means located in a central office, the residential phone wiring comprising plugging means for connecting at least a first analogue phone. The device comprises second phone subscriber line interface means for providing phone services over the network and means for coupling the first phone to the second phone subscriber line interface means when the residential phone wiring is disconnected from the first phone subscriber line interface means.