[sr-dev] ideas on dialog spiral distinction

[Klaus Darilion]

Am 24.08.2011 15:19, schrieb Jason Penton:
> So for an invite from UA1 to UA2 the INVITE will appear twice at the
> same PCSCF (assuming there is only one PCSCF in this case). This will
> result in spiraling on Kamailio right now, BUT there is no way to
> distinguish between the 'originating' dialog and the 'terminating'
> dialog. why is this a problem? well it would be nice to know in the
> config file in which mode you are in. I am sure there will be non ims
> related scenarios but I can think of any ;)

For transactions you can find out the direction by using fromtag cookie
(ftag) in RR header and the is_direction() function.

I guess if you want such a feature to extend the dialog capabilities, it
can be done in a similar way (record-route cookies)

regards
Klaus