I've seen several brief articles on the Microsoft Lync server (formerly Office Communications Server) that talk about replacing PBX's, but in reading some press releases and websites I'm not finding it clear exactly what Lync actually does and doesn't do.
Can someone please tell me if Lync can perform the same functions and replace a linux-based Asterisk PBX? I've got an existing Asterisk PBX and VOIP phones I'd love to switch to a Windows-based system. I'd be looking for normal PBX functionality (e.g. voicemail, autoattendent).