Conference calls are a reality in an international organization the size of Microsoft. This clip is nice parody on them: http://www.dailymotion.com/relevance/tag/confcall/search/microsoft/video/87706.
Very recognizable! I'm not a big fan of phone calls in general and conference calls are even worse. In my opinion they only work when there are only few people (max. 4) who come prepared and understand their role in the call.