I've gotten as far as I can with this problem and could use some help. Here's the problem: - Two soft phones can dial each other (ext 1001 and 1002) and voice works in both directions - Wireshark shows Leg A in/out from phone 1 (10.1.10.5) is SRTP and Leg B out from freeswitch (10.1.10.2) is SRTP. However Inbound from phone 2 (10.1.10.4) to the switch is just RTP. Any ideas? I've read what I could find on the freeswitch wiki and made the obvious changes to the dialplan <!-- Offer SRTP on outbound legs if we have it on inbound. --> <action application="export" data="sip_secure_media=true"/> and then did this to the internal.xml sofia config <!--Uncomment to let calls hit the dialplan *before* you decide if the codec is ok--> <param name="inbound-late-negotiation" value="true"/> Using Freeswitch version 1.0.head (git-2486306 2011-06-23 11-57-38 -0500) Blink is being used as the soft phone v0.24.1 released in May 2011. Linux and Mac versions. I've also tried sflphone for a linux host with no change in the behavior. If I bypass the media stream and send the SRTP between the soft clients directly all works fine. I've attached various stripped down dialplans, sip configs, and a wireshark packet dump. Thank you -Jim