Hi, In my case I used them both. It depends on the features I am going to activate. There are some departments that use only a standard PABX-like, use 8 Ports FXO Gateway, 48 Ports FXS Gateway and all they need is to be able to call and be called. I used Trixbox for this application. I have some departments that use ISDN Trunks that uses E1 Gateway, Predictive/Pre-emptive dialing I use only plain Asterisk. In short, I decided on what to use base on what will be my applications. If my application needs some modification/patches to be done during the installation of Asterisk or Zaptel, I use plain Asterisk. But if, its straight-forward PABX application with IVRS, call distribution, voicemail, conferencing, call queue, fax to email and voicemail to email, I use Trixbox and I assure you it's easy to set-up (it's really freePBX in 1 to 2 hrs.) --------------------------------- Food fight? Enjoy some healthy debate in the Yahoo! Answers Food & Drink Q&A. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070411/55997518/attachment.htm