An incoming caller reaches the Auto attendant, dials ZERO (Operator is X 249)

When zero is dialed I would like it to go to UCD 6 (415) which includes (linear ringing) for 249, 201, 202.....(3 rings each).
I would then like to re-route directly to 249Voice Mail.

I have never been able to make this work, and have even changed the trans.txt file UCD Overflow for Hunt Group 6 to = 249*,*

Any ideas?