Call Accounting 9.0 Full Install: *Intended for a computer that does not have a previous installation. *version 9.0 and up requires a paid activation. *Contact sales@uspnet.com for more information. Upgrade Install: *Intended to Upgrade an existing installation of 7.0 or higher. *Upgrading a version lower than 9.0 requires a paid activation. *Contact sales@uspnet.com for more information. Exe: *Intended to upgrade a 9.0 version. *Upgrading a version lower than 9.0 requires a paid activation. *Contact sales@uspnet.com for more information. Call Accounting 7.0 Full Install: *Intended for a computer that does not have a previous installation. *Requires a sentinel key in order to collect data. Upgrade Install: *Intended to Upgrade an existing installation of 4.0 or higher. *Requires a sentinel key in order to collect data. Exe: *Intended to upgrade a 7.0 version. *Requires a sentinel key in order to collect data.