[Serusers] Cancel'ing filure_route

Klaus Darilion klaus.mailinglists at pernau.at
Tue Aug 30 10:30:25 CEST 2005

Dmitry Isakbayev wrote:
> Hello,
> I need help understanding how to handle "CANCEL" messages.  Here is the 
> case -
> 1 Proxy rebuilds URI, sets 'failure_route', and executes 't_relay'
> 2 't_realy' times out and the proxy executes 'failure_route' after the 
> fr_timer hits
> If the OUI cancels the call between steps 1 and 2, the proxy still 
> executes the 'failure_route' after the fr_timer hits.
> Can I cancel any "t_on_failure" logic after receiving a CANCEL message?

Hi Dimitry!
Take a look at the openser mailinglist, were this issue was recently 

With ser you can use if(t_check_status("487")), with openser you could 
use the new function if(t_was_cancelled()).


> Or, while in in the 'failre_rout' block, can I figure out that there was 
> a CANCEL message?
> Thank You,
> Dmitry
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