Ok, let me see if I can explain what I am trying to do.
I am taking in a list that has a format of:
npa,nxx,trunkname
Think phone numbers in north American dial plan.
the system I am feeding can take the whole 6 digits, but
will match on lesser digits. So Instead of always
inputting all 6 digits and pointing that to a trunk group.
I can say 33021 points to trunk 1000
And 330215 points to trunk 10002
Meaning that all other nxx combinations except 330215
will match trunk 1000.
Hope this make sense.