We'd like to provide our users with a page on our portal, where we will provide links to conference rooms, where they are requested to go.

However, once they have the client open, we don't want them to have to get to the download launcher page each time. Is it possible for the browser link to route the already-open client to a new conference straight away?

So either an API, or an alternative link instead of this:
https://uk-v2.nefsis.com/join.html?dn=XXXXXXX&product=Nefsis&version=5.2.21.325&pfpath=WiredRed&setup=ccsetup.exe&shellexec=CC\CC.exe

Many thanks!