On 23 January 2006 , Ericsson acquired a majority of Marconi Communications ' parent company , Marconi Corporation plc . The remainder of Marconi Corporation plc was renamed Telent plc .
On January 23 , 2006 , Ericsson acquired a majority stake in the parent company of Marconi Communications , Marconi Corporation plc . The rest of Marconi Corporation plc was renamed Telent plc .