OpenSIPS: new PBX dialing module (SourceForge)
OpenSIPS is an GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms. A new module is available in OpenSIPS (called closeddial module). This module is intended to offer a functionality similar to Centrex to OpenSIPS, allowing to define groups of closed dialling, using abbreviated codes."
