Daniel Öhman, an investigative reporter at Swedish Radio, says several former top executives at Ericsson, speaking on condition of anonymity, told him that money was sent to politicians and senior civil servants via a complicated system of front companies and offshore accounts.
One former Ericsson employee has gone on record and told Daniel Öhman how he was a middleman and was ordered by Ericsson to create a system that would conceal all the real recipients of the money from the records.
Liss Olof Nenzell, a former Ericsson employee in Switzerland who worked with confidential payments at the end of the 1990s, tells Swedish Radio that it was about paying big amounts to the right people at ministerial and director level around the world.
"We're talking hundreds of millions. To several countries," he says.
Ericsson denies any wrongdoing in the late 1990s and early 2000s.