Hi Daniel,
I solved it! In the tls.cfg file I changed
method = TLSv1.2+
to
method = TLSv1.2
It seems like Kamailio wasn't liking the TLS 1.3 connections. The
documentation states it should work when using Open SSL 1.1.1 and I am
indeed using that, so I'm not sure what went wrong. Could it be a bug?
openssl version -a
OpenSSL 1.1.1 11 Sep 2018
I'm happy I have the WSS working now. I will test the audio shortly and
report back.
Thanks again for all your help,
C