I am very excited that our Tech team has released Cinchcast Connect product. A common problem in large conference calls with hundreds or thousands of participants is that you do not know who is on the line. In Cinchcast Connect, we implemented a universal PIN :
"Registered participants receive a unique PIN code to access the audio conferencing portion of corporate events hosted on the Cinchcast platform. Event participants do not have to wait on hold to be screened by operators prior to entering events. In addition, for users who may attend multiple corporate events (Employee Town Halls, Team Meetings, Earnings /Analyst Calls), once an individual has registered on the Cinchcast platform, their unique PIN code will always be the same." 
Now you no longer have to guess who is on the call because names of attendees are displayed in our studio. You will see in real-time the number of listeners on the web and callers on the phone.
Our player is HTML5 compliant and requires no browser plugins, works over regular HTTP port 80 so you don't need to poke holes in a firewall, and requires minimal bandwidth requirement (15x-20x less than a video stream). So it turned out to be a great product:
If you are interested to try it out, please drop us a line: http://cinchcast.com/contact/