Sunrise Telephone Systems has announced its 2010 version of Asterisk for Mac OS X. The software is a port of the Linux version, and allows a Mac to host a private branch exchange -- PBX -- telephone system and VoIP server. An optional ISDN adapter brings compatibility with ISDN telephone lines. It offers features like auto-attendant, call forwarding, call screening and call transfers. It also has interactive voice response menus, music-on-hold, call conferencing, voicemail, voicemail-by-email and IP phone support.