[ Thanks to tk421 for this link.
]
“Open Source VoIP vendor Digium is releasing the latest version
of the Asterisk Business Edition this week, which includes new
security and voice features, as well as a new Linux distribution
base.“Asterisk is an open source IP-PBX with interactive voice
response (IVR), voicemail, caller ID and conference calling on its
long list of PBX features…”