New to asterisk...........help me

hi ALL
am new to asterisk… Is it possible to route an incoming call to another outbound route dial plan???

here is my scenario

extention

1001

Trunk
1)exchange server
2)skype

outbound route
1)exchange with dial plan 8800

incoming route
when a call from Skype i can route to any extension…

Is it possible to route incoming call from Skype to exchange dial plan 8800 directly…if so how???