Home automation, programmable appliances, and high-end cameras are all currently in this situation, as are a whole slew of telephones that offer call forwarding, three-way conferencing, or even just call transferring. How many times have you been on the phone and heard—or said—“Now I may lose you when I hit the transfer button, so be sure to call back if I do.” The problem is that for people who are not frequent users of the system the protocols are simply too hard to remember.
