We need a research report for free phone conference services similar to
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The report should have the following fields for each service
* Url
* any limit on # of users
* any limit on # of minutes per conference
* Advertisements in beginning/end/middle of call
* Recording option available or not
* Any web conferencing / whiteboard or powerpoint slide broadcast option available ?
* Local # available in country list ( e.g. USA, UK, Australia, even India )
These must support regular phone calling - skype type services would be ok if they support calling from a regular ( non voip ) phone