with selection means, e.g. keys, having functions defined by the mode or the status of the device

Full Title

Substation equipment, e.g. for use by subscribers (subscriber services or facilities provided at exchanges H04M3/00; prepayment telephone coin boxes H04M17/00; current supply arrangements H04M19/08) > Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection > User interfaces specially adapted for cordless or mobile telephones > with selection means, e.g. keys, having functions defined by the mode or the status of the device