SARK & SAIL PBX Wiki pages
SARK/SAIL is an Asterisk-based PBX, with a browser GUI component, a SIP provisioning system and an Asterisk code generator. It currently runs on SME Server 8, Centos 5.5 and the Pika Warp embedded Linux server. SARK and SAIL are essentially the same product, the difference is that SARK is the supported commercial release while SAIL is supported by the community. In addition there is some functionality which is only available under SARK.