DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   calling line identification restriction /kˈɔːlɪŋ lˈaɪn aɪdˈɛntɪfɪkˈeɪʃən ɹɪstɹˈɪkʃən/ (CLIR /klˈɜː/)
   Rufnummerunterdrückung <fem> [telco.]
      Synonym: call number suppression