[sr-dev] [tracker] Comment added: tm doesn't relay changed 'To' header in CANCEL before dialog is established

[sip-router]

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The following task has a new comment added:

FS#325 - tm doesn't relay changed 'To' header in CANCEL before dialog is established
User who did this - Trip Volpe (tvolpe)

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To revisit this issue, I'm wondering why the check in t_cancel.c is necessary at all. If the UAC buffer contains a different to-URI, shouldn't that always be used, especially since the comment above indicates that the CANCEL should be constructed from the INVITE that was *sent out*, not the one that was received? In particular, is there a reason that this patch is not a solution to the problem? https://github.com/mraccident/kamailio/commit/c6d0062aac8c50594abd7b927ad0d44a41abb770

That is, is there a circumstance under which you'd want the received to-URI to override the one in the sent INVITE, in the cases where they differ?
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=325#comment1064

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