Re: [SR-Users] t_relay_cancel usage

On Oct 07, 2010 at 13:52, Juha Heinanen jh@tutpro.com wrote:

in tm readme there is this kind of example regarding use of t_relay_cancel:

if (method == CANCEL) { if (!t_relay_cancel()) { # implicit drop if relaying was successful, # nothing to do

# corresponding INVITE transaction found but error occurred
sl_reply("500", "Internal Server Error");
drop;

} # bad luck, corresponding INVITE transaction is missing, # do the same as for INVITEs }

if proxy is processing all invites statefully, why anything needs to be done when invite transaction corresponding the to cancel is missing? isn't it a case of unmatched cancel and the cancel could just be dropped?

Well, IMHO it should be forwarded the same as one would forward the INVITE. Dropping it is quite a hardliner approach :-)

Andrei