i started to use a cube router when a outside call comes in and not answered it goes to unity but not the uses Voice mail

[Dino Carota]

i started to use a cube router when a outside call comes in and not answered  it goes to unity but not the uses Voice mail

internal calls are ok 

[Jaca]

You'll need to post more information to get a relevant answer. 

Sounds like the call is terminating properly, but CFNA is not configured correctly. 

Debug your dial peers and see if they are matching properly. Clean up and post your configs of the VG with information of what numbers are being called. Might need some SIP debugs, but won't know until we get the other information.