[Serdev] Can the function is_to_local be added to the domain module

[Zeus Ng]

Thanks Klaus and Juha.


> in-dialog requests should be forwarded by the loose_route() block in 
> ser.cfg. You can further verify if there is a to-tag present in the 
> messages (=>in dialog request). You can safely forward them 
> as if they 
> are faked, they will be rejected by the receiver (e.g. 
> gateway) as there 
> is no matching dialog present.
> 

That makes me understand a bit more on SIP call flow and I should read
harder on RFC3261! I'll move the relay checking block after loose_route().