Transfer Call To Remote Office If No Answer

First of all let me explain you our setup.
i have 2 offices in different countries. Both of them are connected using IAX

i’ve setup a ring group ( 11600 ) where i have the extensions in office 2 and i want when there is no answer to transfer the call to office 1 .

i’ve created a new group ( 11601) where i set the extention 01# which is the reception in Office 1.

I’ve set the 11601 as the destination if no answer on 11600 but is not transferring.

what i am doing wrong?


Chrysanthos Kattimeris