Thanks for the reply. Yes there have been plenty of reboots and the dialogs are originating from asterisk as they arrive at the client.
I.E. pjsip set logger host 202.90.xxx.xxx shows the incorrect address info.
I installed this from pre release 17 and have been upgrading successfully since. I have since added Teams functionality and possible other plug ins that I don’t remember. It is a semi production system. Only my 2 home extensions and mainly used for testing.
If it’s not a simple setting I’m missing, I’ll rebuild the system from scratch and see how it goes. I have not had these issues with Asterisk based systems before. It is strange that the SDP is all based on public IP , but the header is private.
I am away for a week, but I will check in here when I have an outcome to share.