Are the centrex or custo pack lines?

If so i have some info i can pass on to you on how to write some command files that I use on quite a few site that we do exactly what you are doing.

We write the Command file and then set the digit for that option on the menu to go to another menu which has the time-out as the command file. We usually record something in the menu instruction saying "you may experience a brief moment of silence during this transfer"

IF this might help let me know.