bnYh0 wrote:
delete interfaces ethernet eth0 firewall
Didn't made any difference. Neither setting all rules to accept in the firewall.
You haven't made any other changes to the Edgerouter except in configure mode? No edits to other files outside of configure mode? Your config seems too straightforward to be having a problem like this... it's so weird!
And yes, I totally agree the sip module (ALG) should be disabled - I was implying that double NAT can cause other problems for you too (in my experience, conferencing and transfering can be hit and miss, and BLF/subscriptions get wacky sometimes -- I work for a VoIP provider)