External Forward IVR

i’m trying to forward via IVR to a external cell phone since 1 week…no chance.
as described in many threads i created a ring group 664… in this ringroup i definded the external number 03423423423#

the forward doesn’t work, it works only when i call the ring group from a internal extension 105 or 106.

but i want to redirect the calelr over the IVR to the cell phone? whats wrong.


asterisk 1.4 freepbx 2.3.1 centos 5