Refreshrate, I do not feel Scottoolguy was out of line, at all. I have programmed this system since early in 1997. Giving you the program to look at would not give you much help. That system has the ability to set each extension differently. The feature you are asking about is not a default setting to accomplish what you want. If you are not familiar with what setting to change/adjust you will likely alter something that you don't want changed.