Hello - You may need to setup port translation rules on the firewall which sits before the VCS-E. Here is some more related info regarding port translation rules on the firewall - http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/Guest/10_5/i...
From the screenshot it looks like you are using a simulator to run the sample apps. For the sample apps to work you have to build using a device. Running on a simulator is not supported.It's on our roadmap to add support to build via simulator.
