Hi Mark We setup a small IPPBX using Asterisk. So far we've been using it for voip network. It's been working fine. We also have a Dialogic D/4PCI four port FXO board with us. We've found some references in the user guide available on your web site and couple of other mailing transaction threads that Asterisk provides pay-for-add-on support for Dialogic h/w. Can you please tell us what is the licensing cost and terms for Asterisk support for Dialogic h/w. Are there any clause regarding usage in US and outside US? Thanks & Regards Hariom Sharma Mobile- 91-9891216960