G3siV6 Is is possible to add barrier code to rnats and inads sta

[chris5225]

Hi all and thanks. I have two sta for inads and teo for rmats. THere is a black box here made by VIKING (think) is for this. The rmats let somebody dial in the switch and then can dial out That is RMATS IN. I dont know what sta 426/429 RMATS IN/out stands for also there is 788 789 798 799 they get modem tone and I know one goes to INADS denver>>Cant I add a line code on these?? Will someone specific and let me know what the corrrec purpose they serve
AS right now i have the fax line hooked to the 25pair in aug to remote in
thank
chris