Didier Boivin was Alcatel's General Manager for DSL chips at the turn of the century. Alcatel had won huge American contracts for DSLAMs and were using chips from their own Alcatel Micro division. Other companies had to work well (interoperate with) the Alcatel chips. It wasn't easy for the industry to come together and do the necessary common work for interop.
Today, Didier is Sales & Marketing Vice President of Metanoia Communications. Metanoia chips have to work well with Broadcom and Sckipio, the G.fast leaders.