[Freeswitch-users] Should WebRTC work in a double-NAT environment?

Hi, We have a Freeswitch running in a double-NAT environment, where the server is in a NAT network, and the client is in a remote NAT network. In the remote network, using a SIP softphone, we can make calls into the server and hearthe media. Using a web browser on the same network as the switch, we can hear media in WebRTC (using JSSIP). But when using a web browser in the remote network, we can see the signaling but cannot hear the media. Should WebRTC work in a double-NAT environment?  Any ideas why the media is not working in this environment? Thanks, David