I'm Ravi Ranjan Kumar Singh; RHCE certified in Red Hat Enterprise Linux 5. Easily work with of all linux version like Ubuntu ,fedora , redhat , centos , suse, etc . I have excellent knowledge of Goautodial or vicidial . I know that how to customise dialer every thing . i also working with open source CRM like Vtiger & sugarCRM . i can easily install all packages & application on linux ( webmin, sugarcrm, mysql, phpmyadmin, nagios, etc ). i have also knowledge VMware workstation , virtual Box, on linux .