Open Source CMS, E-commerce, VOIP
Content management System...
------------------------------
Joomla , Drupal Mambo, Custom CMS.
E-commerce
------------
oscommerce, magentocommerce, ubercart ..
VOIP
-----------------
vmukti, Asterix ..
free drupal 6.17 update by OSCoder team this summer.. limited sites on FCFS basis, contact developer at oscoder.com