free calendar software for enterprise website
 

My company website currently uses aCal (http://sourceforge.net/projects/acalproj/) which is ancient and out-of-date. I'm looking for an alternative that we can host 100% ourselves (i.e. no Google Calendar, etc.)

Any suggestions?

We run RHEL5.5, and PHP 5, and Oracle DB

Hi, I only know of the Horde groupware suite which contains a calendar app. It might be what you want.

Serafean