Theoretically you could make an account code and enter that caller ID into it
That should then recognize the number and associate the account code with it

Joe
FHandw, ACSS, ACIS

This would actually be for any telephone number dialed not a specific number.

Just external numbers whenever they dial nine

Is the account code setup in the system or on the line?

If it is in the system then just turn it off
if it is in the system then you might get away with a shortcode to enter it.
The shortcode can be in the system or in the ARS, it is never straight forward but playing with it and writing down where you try it will get you a solution for it (usually)

xxxxxxxxxx
dial
N,,12345
line ID

sometimes it also is
xxxxxxxxxx
dial
NY,,12345
Line ID

or

xxxxxxxxxx
dial
ND,,12345
Line ID

you have to play with it and once you find a solution you also have to create a code for long distance so the same but with a 1 before the X's

Joe
FHandw, ACSS, ACIS

Set up on the line with the Telco. So all the call accounting appears on the phone bill

Thanks, I'll give you a short code recommendations a try

Short code recommendations work like a charm! Thanks