I've successfully installed FreeSwitch on Local Linux Server (CentOS 6.5), and it worked fine. I could make a call and hear sound from other device.
I followed exactly same process on Amazon EC2 CentOS server. http://wiki.freeswitch.org/wiki/Linux_Quick_Install_Guide
I opened all firewalls in case http://wiki.freeswitch.org/wiki/Firewall
I can see that server is running fine. However, I couldn't hear any sound on EC2 Server. Does anyone had this issue? Thank you.