said by jonybd:but the problem is when line 2 is busy , and i change the line 1 settings it doesnt apply until both line is free/idle.
is there any way that can force update the changes ? no matter calls are connected or not connected. (because software gives warnning , but the changes need to be make)
reg
RonR is correct The settings will not take affect until both lines on the ATA are idle. I do not see any way to force it to behave differently.