[Serusers] t_check_status in failure_route

[Andreas Granig]

Andreas Granig wrote:
> There was a discussion about introducing a method which checks if the 
> call is cancelled to detect 487 (don't know anymore if on the 
> openser-lists or here), but what about other codes?

Or to rephrase it: does it really make sense to choose the lowest code 
for serial forking? I understand it does when forking in parallel, and 
that it's the same implementation for both in SER, but wouldn't it make 
live easier when differing between both scenarios and just overwrite the 
last code when doing serial forking?

Andy