The jack command connects your deck to Cyberspace (jacks-in) if you aren't
currently jacked-in, or disconnects your deck from Cyberspace (jacks-out)
if you are currently jacked-in.

When jacking-in, if you still have a valid Internet account and are living
in a flat (renting) you can connect from your home at reasonable rates. 
Otherwise you must connect from a street link (at exhorbitant rates).

When jacking-out, if you are not jacking out from your home system (your 
cyberdeck) there is a small chance that your attempt to jack out will fail. 
If that happens, just try again in a few seconds. 

Also, there are a few ICE programs that cause you to be locked into the net.
If this happens, you just have to ride out the locked-in time and hope
you can jack-out before any more bad things happen to you.


