Right now my system (bcm450) is set up to forward the main reception phone if its busy or unanswered to another set in another building. Set X is set up to go to voicemail if that line is busy. Its not working for us (obviously) so I am wondering what I would put in the FWD BUSY column of Set X so that it rings on any or all un-busy sets in either of our buildings instead of going to voicemail. I am hoping there is something out there that can do something along those lines. Please let me know, thanks.