> Dialled locally Number that must be dialled remote
> 0034XXXXXX 9XXXXXXXXX (-0034 and +9)
exten => _0034XXXXXX,1,Dial(CHAN/user at peer/9${EXTEN:4})
> ZXXXXXX 078ZXXXXXX (+078)
exten => _ZXXXXXX,1,Dial(CHAN/user at peer/078${EXTEN})
Someone needs to go read some more before asking such basic questions.
bkw