Lewis Hamilton and Nico Rosberg have welcomed increased radio silence for the final six races of their dramatic duel for the drivers' world championship.
But the airwave clampdown was criticised by Felipe Massa, the veteran Williams driver warning ahead of tomorrow's Singapore Grand Prix that it could lead to a major accident.
Mercedes teammates' Hamilton and Rosberg, who have fought an intense battle this year, will, like the rest of the pitlane, no longer have unrestricted radio contact with their teams.
This follows the ban on 'performance-related' radio communications by the sport's ruling body, the International Motoring Federation (FIA).
"All the fans are cheering so it looks like the right way to go," said German Rosberg, who leads Hamilton by 22 points ahead of Singapore.