WebEx can be used when multiple participants are communicating. Meeting can be joined also from the tool free numbers. NovaTec has a subscription to WebEx. Here are instructions on how to reserve a meeting if you are an employee of NovaTec (link to NovaTec internal confluence): WebEx
While it is expected that WebEx works with no problem on Widows, for the Linux there are sometimes problems in starting it and having it recognize the audio devices correctly. Follow the instructions on this http://gazelle.ihe.net/content/using-webex-under-linux in order to set up your Linux correctly.
Ubuntu 14.04
Following instructions on page http://gazelle.ihe.net/content/using-webex-under-linux solve all the problems for the Linux 14.04. Note that after installing the Firefox you need also to install IcedTea plugin:
sudo apt-get remove icedtea-6-plugin sudo apt-get install icedtea-7-plugin
To check correct set-up go to http://www.webex.com/test-meeting.html. When meeting starts you should get the following correct setup page:
