A mobile telephone has a conventional wireless network call handling unit having a sound output for audibly outputting sound information received from a call in progress. In addition a wireless broadcast unit is provided for broadcasting information locally. The user can command the mobile telephone to broadcast the sound information from the call to one or more receivers in a neighborhood of the mobile telephone. Thus others can listen in on the call. Depending on commands by the users, the receivers may broadcast information back to the mobile telephone, for transmission via the call, together with sound information from the mobile telephone itself.