Within the WebEx meeting online gui, under a meeting details (Advanced options), under the 'Audio Connection options' section, there is a drop down list for 'Audio Connection Type' with the values 'WebEx Audio', 'Use VoIP only', and 'None'. I could not see a direct alignment of this GUI adjustment to the equivalent XML setMeeting API calls. Can you let me know what key value or values in the XML post would be the equivalent values that setting 'WebEx Audio' would have in the gui ?
