Phone Calling not working in Spark

I installed Red5 with Spark and everything seemed to be set up right and the test seemed to work as well. In the chat window, when I click on the phone icon to make the call it says making call (from computer to computer) it says connecting then drops saying there was something wrong and it may be with the firewall. I checked both the firewall on the server and the ones on the local computer and there is nothing blocking anything on there and I opened up the ports for them (i think) and even turned the firewalls all the way off and nothing. Is there anything else I am missing here and where else can I checked for this to make sure I have it set up correctly.

Thank you in advance for your help!!!