Not a firewall problem and never was. I found this post here:
and it got me thinking - the farthest I could roll back to was 13.0.21 so I did and like magic, it worked:
994952/7qvq692f 10.12.22.134 D No No A 53547 OK (8 ms)
But if I roll up 10 13.0.26, like magic the problem comes back:
994952/7qvq692f 10.12.22.134 D No No A 53739 UNREACHABLE
Roll back to 13.0.21 again:
994952/7qvq692f 10.12.22.134 D No No A 53818 OK (9 ms)
And the phone operates like it should.
This test was done with Firefox, but Chrome behaves the same way - 13.0.21 and the phone registers and rings when called - any higher version and I am toast - on multiple machines - using Asterisk 11 and 13.
I don’t think so…