Alternativ till Trengo för Perl med öppen källkodslicens

• Perl
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Safari Internet Explorer PHP BSD Windows Mobile Wordpress Chrome Gmail MySQL Community Edition Drupal Google Apps Trello Microsoft SQL Server Salesforce.com Perl Zendesk Microsoft SQL Server Express
• Open Source-licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens