Berkeley Software Design (BSDi) obtained the source for Net/2, filled in the missing pieces, and ported it to the Intel i386 computer architecture. BSDi then sold the resulting BSD/386 operating system, which could be ordered through 1-800-ITS-UNIX. This drew the ire of AT&T, which did not agree with BSDi's claim that BSD/386 was free of AT&T intellectual property. AT&T's Unix System Laboratories subsidiary filed suit against BSDi in New Jersey in April 1992, a suit that was later amended to include The Regents of the University of California.