I'm not sure if this is a bug or just a NAT-related configurational problem. If it's truly a bug, let me know and I'll be happy to file a Jira. I'm trying to get bypass media to work with extension to extension calls. Both endpoint extensions are behind NAT in two different locations. This looks like a possible bug because FS sends the internal IP address of one of the endpoints to the other for media, but when making a call from the same extension to an external gateway for PSTN termination, it sends the phone's external IP address as it should, and the call succeeds. Everything works fine, of course, when "proxy media" is used. The SIP traffic for the failed call is here, look for the word "WRONG!" to see the incorrect address being passed in the SDP: http://pastebin.freeswitch.org/19003 Regards, Phil Quesinberry Q Systems Engineering, Inc. Electronic Controls and Embedded Systems Development (410) 969-8002 http://www.qsystemsengineering.com