I have a couple of enhancements I would like to see here:
1) Forward calls to multiple phones simultaneously
2) Multi Ring: why can I only have it ring on my home phone and one other line? I would like it to ring on both mine and my wife's cell
3) I would like to be able to setup time when multi ring and call forwarding take place. For instance, I would like to have multi ring happen on weekends only when we usually are traveling and just ring at home on weekdays.