>From this article, humbly title "Linux-based voicemail messaging catching on" http://www.nwfusion.com/newsletters/linux/2005/0411linux1.html Comes the surprising revelation that Nortel now ships a small office PBX based on Linux http://products.nortel.com/go/product_content.jsp?segId=0&parId=0&prod_id=43959&locale=en-US John