From this page you can download freely Druid SoftwareTM contributions to the Open Source community.
Note that all software on this page is to be used at your own risk.
Downloads
ztloop (v1.0)
ztloop is a linux kernel module developed by Druid SoftwareTM that emulates a PRI card where the spans are connected in loopback. It also allows tapping of data transmission between these virtual spans.
ztloop allows developers to test user space applications without the need for installing a zaptel based PRI card.