US Patent 7424309 System in vehicles for making a telephone call

A system for making a telephone call in a vehicle in which information concerning the traffic situation of a first vehicle is electronically processed and sent to a second vehicle. By apparatuses of further electronic processing, only relevant information concerning the traffic situation, which is in the field of view of the device of the first vehicle, is transmitted to the receiving party together with the telephone conversation. Unimportant details of the environment are able to be suppressed.