local or remote access? Does telnet localhost <port> connect?

I forgot. Remote access. When I telnet this port i see:

tstapp.insgl.puk 

And nothing more.

so it connects?

Yes

Seen https://community.jboss.org/wiki/UsingJconsoleToConnectToJMXOnAS7 also?

I have seen this too.

JBoss work in domain mode.

Port number I take from standalone.xml

What mode are you actually running JBoss in?  It sounds like you are mixing the two modes.

Are you able to access the admin console remotely?  Have you defined users for admin interfaces and provided the username and password to jconsole?

I would suggest for debugging purposes just unzip an AS installation on the machine being used as a client and use the jconsole.sh and jboss-cli.sh scripts from that installation to verify if either of these can connect to the AS instance on the other machine.

Hmmm. IBoss work in domain mode. I haven't configured this. JBoss work somewhere in intranet and I have to connect via Jconsole. Taking the port from standalone.xml file was my mistake. What port should I take from domain.xml? Please for indulgence for me. (<- I don't know It is correct by english isn't fluent).

For domain mode you currently cannot connect directly to the domain controller (since the subsystems don't start up there), instead you need to connect to the individual servers started up by the domain controller.