If all the sets were the same type, if all the ringing were the same/close, if there was no PRi, if there were no hunt groups, if there was no extensive speed dial list, if the numbering plan was already three digit, then it might not be so much time.

When do we ever get that lucky? If this is a flat rate job then you have to figure it in, if it is Time and Materials, then you get lucky.

THE Bracha, old blond specialist in Rube Goldberg solutions.