I have installed vicidial and getting [root@127 ~]# screen -ls There are screens on: 12791.ASTsend (Detached) 2879.ASTconf3way (Detached) 12788.ASTupdate (Detached) 2871.ASTfastlog (Detached) 12800.ASTVDremote (Detached) 12797.ASTVDauto (Detached) 12794.ASTlisten (Detached) 2868.ASTVDadapt (Detached) 8 Sockets in /var/run/screen/S-root.