We have a 016 T/R board. Several analog phones are on those ports. Some of them needs to dial 9 to get outside line some get outside when they go off hook (w/o 9). How do I change the ones that require 9 such that they would get outside line by going off hook? I have working winspm but I am not familiar with the entire system. A bit details in the steps to get it done will be much appreciated.