Hint for extension across a trunk?

I want to try to subscribe to an extension that I reach across a trunk.

Example…I have a peer


exten => 7400,hint,SIP/100@lab-sbc

That doesn’t work. I don’t see any subscribe related traffic when I do this. Do I have the wrong syntax? Can I do this?

I wasn’t aware that Asterisk could originate subscribes, except, possibly for message waiting.

There is limited support for Asterisk to Asterisk remote presence, but it doesn’t use SIP.

This is the wrong forum for support questions.