Can Jitsi run in Android for other domain that meet.jit.si?

Hi guys,
I setup a jitsi server on Docker on Ubuntu 18.04 some weeks ago and till now I cannot run this new installation in Android. It is posible?.
I have my domain meet.mydomain.com:8443 (opened this port), I configured in Jitsi app in Android but I only open rooms in meet.jit.si.

Please could you suggest what should i do?.

Thanks

@edzel,

You should be able to put your own join URL in the field:

If you can join from a desktop browser but not Android: