I have had a system programmed for 4 digits.
Did not work. Only to find out that Telco was sending 7 digits. Even tho I had the right matching 4 digits, 4 does not match 7 and it did not work.
Once I changed to 7 digits (Matched Telco) it worked.

Yesterday, I installed a PRI on a MICS - they didn't know the # of digits. I set for 3 - didn't work til I went to 4.
Match the digits.
I have never seen one work that didn't match.


If CON is the opposite of PRO
Then what is the opposite of Progress?