I don't know the definitive answer but I have noticed that some have the programming location for ports 1-4 & some show 1-6 on the screen, So I may be incorrect but I would feel if it is a programming location, it is probably available for expansion. It can't hurt to Try...Jim
Jim Marks Denville Wiring Systems Panasonic Phones & Voicemail N.J. 973-627-7088 > They did modify some the later 100s to be a 6 port system. Some but not all > had this capability...Jim Somebody will know this, its had my curiosity for sometime. On the > > TVS100 there's 3 slots for cards, 1 & 2 are for TVS102 port cards. What > > is expansion slot 3 for, the same thing as slots 1 & 2 or something > > else? > > > > > > The manual ONLY says its spare. Has anyone ever tried putting a > > card in expansion slot 3 and to see if it will give the unit 6 ports and > > work?? > > > > > > > > THANKS! :) > > John > > > > > > _________________________________________________________________ > > KX-T Mailing list --- http://kxthelp.com/ > > Subscription changes: http://kxthelp.com/mailman/listinfo/kxt > > > > > _________________________________________________________________ > KX-T Mailing list --- http://kxthelp.com/ > Subscription changes: http://kxthelp.com/mailman/listinfo/kxt > _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt

