There's a ring/hunt group created. It involves the following.
ext 100, 101, 102 (standard phones)
and there's an extension that is just setup for a cell phone
ext 103, forward to cell phone # configured.
If I configure the hunt group
stage 1 extensions: 103, Duration:20
stage 2 extensions: 100, 101, 102
It does not ring the cell phone @ 103, it instead goes directly to 100, 101, 102.
If i configure it
stage 1 extensions: 103
Just like that, it rings to the cell phone fine.