[cisco-voip] Callers in Conference Call to Conferencing Service such as "WebEX" have Calls Disconnected by Receiving DialTone played out

[Samuel Womack]

Anyone here ever hear of something like this happening?  Again,  
Callers are in a Conference and then Hear Dial Tone (they are  
disconnected); I've never heard of this before...While Connected in a  
Call....

Sam