▶ Elastix | Free Communications software downloads at SourceForge.net

Elastix is an appliance software that integrates the best tools available for Asterisk-based PBXs into a easy-to-use interface. It also adds its own set of utilities to make it the best software package available for open source telephony.

Elastix Web Site

via Elastix | Free Communications software downloads at SourceForge.net.