2 handsets and 1 number

[bestsingletravel]

I have 2 handsets at the same location with only 1 phone number. I have shut off the call waiting on both of them.

Is there a way to make the phones act like 1 - when one is busy it does not ring the other phone but goes to another phone number (or extension at a different location).

All help is appreciated!!

Thanks,
Sheryl