Plan 9 from Bell Labs’s /n/sources/plan9/sys/src/cmd/telco
--rw-rw-r-- glenda sys 201 Dec 11 1999 mkfile --rw-rw-r-- glenda sys 26253 May 16 2002 telco.c --rwxrwxr-x glenda sys 95 Dec 11 1999 telcodata --rw-rw-r-- glenda sys 30 Dec 11 1999 telcofax