Multiple choice general knowledge science & technology When and who made the World’s first GSM call. Dr. Martin Cooper in 1973 October 13, 1983, President of Ameritech Mobile Communications Bob Barnett. December 5 1991 US president George HW Bush. July 1, 1991, Finnish Prime Minister Harri Holkeri. Reveal answer Fill a bubble to check yourself D Correct answer Explanation The first GSM call was made on July 1, 1991, by Finnish Prime Minister Harri Holkeri. This call was made on the Radiolinja network in Finland, marking the launch of commercial GSM services.