CADM is a very large complex application used by AT&T; as their billing system. CADM consists of a large number of third-party software, including various middleware components, Oracle database, and AT&T applications. When AT&T; decided to move their Billing System platform (CADM) application from HP/UX to Sun Solaris, they contacted Sun Microsystems. Sun, in its strategic partnership with SoftDomain, immediately turned to us to study the application on HP/UX and port it to Solaris 2.6. SoftDomain engineers ported the complete application in a record three-month period, resulting in huge savings for AT&T.